Code
C1095
ALFA ROMEO
C — Chassis
Right rear load valve
AI status
Completed
Completed
100%
Causes
- Open or short in valve wiring or connectors
- Corroded/poor connector or terminal at the valve
- Failed/right‑rear solenoid coil in the hydraulic modulator
- Hydraulic blockage or internal mechanical seizure of the valve
- Contaminated or degraded brake fluid causing sticking
- Faulty ABS/ESP control module or driver transistor
Symptoms
- ABS/ESP warning lamp illuminated on the dash
- Reduced or inconsistent braking at right‑rear wheel
- Traction control or stability control interventions may be disabled or limited
- ABS activation abnormal during braking (pulsation or reduced function)
- Possible diagnostic trouble codes for related ABS circuits or wheel speed sensors
What to check
- Read all stored and pending ABS/ESP codes and freeze frame data with a compatible scanner
- Check for related codes (wheel speed sensors, CAN bus, pump faults)
- Visually inspect wiring and connector at the right‑rear load valve for corrosion, damage, or water ingress
- Check brake fluid level and condition for contamination or discoloration
- Inspect fuses/relays for ABS power and module supplies
- Backprobe valve connector and measure supply voltage and ground with ignition ON
Signal parameters
- Supply voltage at valve connector: approx. battery voltage when powered (typically ~12V)
- Command signal type: PWM or switched supply from ABS module (duty cycle varies with braking demand)
- Solenoid coil resistance: typically low ohms range (model dependent; often ~5–50 Ω) — consult model service data
- Current draw when energized: expected small amp range (module specific)
- Controller diagnostic status and valve command states available via scan tool (on/off or PWM duty%)
- Hydraulic pressure changes reported by ABS module during valve actuation (if supported)
Diagnostic algorithm
- Safety first: vehicle on level ground, parking brake applied, ignition off, follow manufacturer safety and SRS procedures
- Connect scanner and record all ABS/ESP codes and live data; note freeze frame
- Clear codes and attempt to re‑create fault by cycling ignition and performing a brake test while monitoring the right‑rear valve command and status
- Visually inspect the valve connector and harness for corrosion, chafing, or damage; repair any wiring faults
- With key ON (engine off), backprobe connector: verify battery supply to valve connector and good ground
- Command the valve ON/OFF or request diagnostic active tests via scan tool while monitoring voltage/current; observe whether valve responds (listen for click)
- Measure solenoid coil resistance and compare to service specs; open or short indicates faulty solenoid
- If electrical checks pass, inspect hydraulic side: check for leaks, contamination and proper brake fluid level; consider flushing system if contaminated
- If wiring and hydraulic system appear good but valve does not respond, consider replacing the right‑rear load valve or hydraulic unit as per service manual
- After replacement or repair, bleed brakes as required, clear codes and perform road test/ABS self‑tests to confirm fault cleared
Likely causes
- Damaged connector or corroded pins at right‑rear load valve
- Solenoid coil inside the right‑rear valve failed or shorted
- Hydraulic contamination or debris causing valve to stick
- Open/short in the harness to the valve
- ABS hydraulic unit fault (valve body internal failure)
Fault status
Status
Right rear load valve circuit/operation fault detected by ABS/ESP control module — electrical or mechanical malfunction present.
Repair difficulty: Hard
Diagnostic time: 1.5-3.0 hours
Similar codes
Repair manuals
Manual library for ALFA ROMEO
89
Browse 89 ALFA ROMEO manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
ALFA ROMEO
-
ALFA ROMEO: 2024
-
ALFA ROMEO: 2023
-
Stelvio
-
ALFA ROMEO: 2022
-
Stelvio
-
ALFA ROMEO: 2021
-
Stelvio
-
ALFA ROMEO: 2020
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Code
C1095
FIAT
C — Chassis
Right rear load valve
AI status
Completed
Completed
100%
Causes
- Open or short in valve wiring or connectors
- Corroded/poor connector or terminal at the valve
- Failed/right‑rear solenoid coil in the hydraulic modulator
- Hydraulic blockage or internal mechanical seizure of the valve
- Contaminated or degraded brake fluid causing sticking
- Faulty ABS/ESP control module or driver transistor
Symptoms
- ABS/ESP warning lamp illuminated on the dash
- Reduced or inconsistent braking at right‑rear wheel
- Traction control or stability control interventions may be disabled or limited
- ABS activation abnormal during braking (pulsation or reduced function)
- Possible diagnostic trouble codes for related ABS circuits or wheel speed sensors
What to check
- Read all stored and pending ABS/ESP codes and freeze frame data with a compatible scanner
- Check for related codes (wheel speed sensors, CAN bus, pump faults)
- Visually inspect wiring and connector at the right‑rear load valve for corrosion, damage, or water ingress
- Check brake fluid level and condition for contamination or discoloration
- Inspect fuses/relays for ABS power and module supplies
- Backprobe valve connector and measure supply voltage and ground with ignition ON
Signal parameters
- Supply voltage at valve connector: approx. battery voltage when powered (typically ~12V)
- Command signal type: PWM or switched supply from ABS module (duty cycle varies with braking demand)
- Solenoid coil resistance: typically low ohms range (model dependent; often ~5–50 Ω) — consult model service data
- Current draw when energized: expected small amp range (module specific)
- Controller diagnostic status and valve command states available via scan tool (on/off or PWM duty%)
- Hydraulic pressure changes reported by ABS module during valve actuation (if supported)
Diagnostic algorithm
- Safety first: vehicle on level ground, parking brake applied, ignition off, follow manufacturer safety and SRS procedures
- Connect scanner and record all ABS/ESP codes and live data; note freeze frame
- Clear codes and attempt to re‑create fault by cycling ignition and performing a brake test while monitoring the right‑rear valve command and status
- Visually inspect the valve connector and harness for corrosion, chafing, or damage; repair any wiring faults
- With key ON (engine off), backprobe connector: verify battery supply to valve connector and good ground
- Command the valve ON/OFF or request diagnostic active tests via scan tool while monitoring voltage/current; observe whether valve responds (listen for click)
- Measure solenoid coil resistance and compare to service specs; open or short indicates faulty solenoid
- If electrical checks pass, inspect hydraulic side: check for leaks, contamination and proper brake fluid level; consider flushing system if contaminated
- If wiring and hydraulic system appear good but valve does not respond, consider replacing the right‑rear load valve or hydraulic unit as per service manual
- After replacement or repair, bleed brakes as required, clear codes and perform road test/ABS self‑tests to confirm fault cleared
Likely causes
- Damaged connector or corroded pins at right‑rear load valve
- Solenoid coil inside the right‑rear valve failed or shorted
- Hydraulic contamination or debris causing valve to stick
- Open/short in the harness to the valve
- ABS hydraulic unit fault (valve body internal failure)
Fault status
Status
Right rear load valve circuit/operation fault detected by ABS/ESP control module — electrical or mechanical malfunction present.
Repair difficulty: Hard
Diagnostic time: 1.5-3.0 hours
Similar codes
Repair manuals
Manual library for FIAT
26
Browse 26 FIAT manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
FIAT
-
FIAT: 2022
-
500X
-
-
FIAT: 2021
-
500X
-
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Code
C1095
Generic
C — Chassis
ABS Hydraulic Pump Motor Circuit Failure
AI status
Completed
Completed
100%
Causes
- Open or short in valve wiring or connectors
- Corroded/poor connector or terminal at the valve
- Failed/right‑rear solenoid coil in the hydraulic modulator
- Hydraulic blockage or internal mechanical seizure of the valve
- Contaminated or degraded brake fluid causing sticking
- Faulty ABS/ESP control module or driver transistor
Symptoms
- ABS/ESP warning lamp illuminated on the dash
- Reduced or inconsistent braking at right‑rear wheel
- Traction control or stability control interventions may be disabled or limited
- ABS activation abnormal during braking (pulsation or reduced function)
- Possible diagnostic trouble codes for related ABS circuits or wheel speed sensors
What to check
- Read all stored and pending ABS/ESP codes and freeze frame data with a compatible scanner
- Check for related codes (wheel speed sensors, CAN bus, pump faults)
- Visually inspect wiring and connector at the right‑rear load valve for corrosion, damage, or water ingress
- Check brake fluid level and condition for contamination or discoloration
- Inspect fuses/relays for ABS power and module supplies
- Backprobe valve connector and measure supply voltage and ground with ignition ON
Signal parameters
- Supply voltage at valve connector: approx. battery voltage when powered (typically ~12V)
- Command signal type: PWM or switched supply from ABS module (duty cycle varies with braking demand)
- Solenoid coil resistance: typically low ohms range (model dependent; often ~5–50 Ω) — consult model service data
- Current draw when energized: expected small amp range (module specific)
- Controller diagnostic status and valve command states available via scan tool (on/off or PWM duty%)
- Hydraulic pressure changes reported by ABS module during valve actuation (if supported)
Diagnostic algorithm
- Safety first: vehicle on level ground, parking brake applied, ignition off, follow manufacturer safety and SRS procedures
- Connect scanner and record all ABS/ESP codes and live data; note freeze frame
- Clear codes and attempt to re‑create fault by cycling ignition and performing a brake test while monitoring the right‑rear valve command and status
- Visually inspect the valve connector and harness for corrosion, chafing, or damage; repair any wiring faults
- With key ON (engine off), backprobe connector: verify battery supply to valve connector and good ground
- Command the valve ON/OFF or request diagnostic active tests via scan tool while monitoring voltage/current; observe whether valve responds (listen for click)
- Measure solenoid coil resistance and compare to service specs; open or short indicates faulty solenoid
- If electrical checks pass, inspect hydraulic side: check for leaks, contamination and proper brake fluid level; consider flushing system if contaminated
- If wiring and hydraulic system appear good but valve does not respond, consider replacing the right‑rear load valve or hydraulic unit as per service manual
- After replacement or repair, bleed brakes as required, clear codes and perform road test/ABS self‑tests to confirm fault cleared
Likely causes
- Damaged connector or corroded pins at right‑rear load valve
- Solenoid coil inside the right‑rear valve failed or shorted
- Hydraulic contamination or debris causing valve to stick
- Open/short in the harness to the valve
- ABS hydraulic unit fault (valve body internal failure)
Fault status
Status
Right rear load valve circuit/operation fault detected by ABS/ESP control module — electrical or mechanical malfunction present.
Repair difficulty: Hard
Diagnostic time: 1.5-3.0 hours
Similar codes
Repair manuals
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Code
C1095
LAND ROVER
C — Chassis
Motor pump circuit failure
AI status
Completed
Completed
100%
Causes
- Open or short in valve wiring or connectors
- Corroded/poor connector or terminal at the valve
- Failed/right‑rear solenoid coil in the hydraulic modulator
- Hydraulic blockage or internal mechanical seizure of the valve
- Contaminated or degraded brake fluid causing sticking
- Faulty ABS/ESP control module or driver transistor
Symptoms
- ABS/ESP warning lamp illuminated on the dash
- Reduced or inconsistent braking at right‑rear wheel
- Traction control or stability control interventions may be disabled or limited
- ABS activation abnormal during braking (pulsation or reduced function)
- Possible diagnostic trouble codes for related ABS circuits or wheel speed sensors
What to check
- Read all stored and pending ABS/ESP codes and freeze frame data with a compatible scanner
- Check for related codes (wheel speed sensors, CAN bus, pump faults)
- Visually inspect wiring and connector at the right‑rear load valve for corrosion, damage, or water ingress
- Check brake fluid level and condition for contamination or discoloration
- Inspect fuses/relays for ABS power and module supplies
- Backprobe valve connector and measure supply voltage and ground with ignition ON
Signal parameters
- Supply voltage at valve connector: approx. battery voltage when powered (typically ~12V)
- Command signal type: PWM or switched supply from ABS module (duty cycle varies with braking demand)
- Solenoid coil resistance: typically low ohms range (model dependent; often ~5–50 Ω) — consult model service data
- Current draw when energized: expected small amp range (module specific)
- Controller diagnostic status and valve command states available via scan tool (on/off or PWM duty%)
- Hydraulic pressure changes reported by ABS module during valve actuation (if supported)
Diagnostic algorithm
- Safety first: vehicle on level ground, parking brake applied, ignition off, follow manufacturer safety and SRS procedures
- Connect scanner and record all ABS/ESP codes and live data; note freeze frame
- Clear codes and attempt to re‑create fault by cycling ignition and performing a brake test while monitoring the right‑rear valve command and status
- Visually inspect the valve connector and harness for corrosion, chafing, or damage; repair any wiring faults
- With key ON (engine off), backprobe connector: verify battery supply to valve connector and good ground
- Command the valve ON/OFF or request diagnostic active tests via scan tool while monitoring voltage/current; observe whether valve responds (listen for click)
- Measure solenoid coil resistance and compare to service specs; open or short indicates faulty solenoid
- If electrical checks pass, inspect hydraulic side: check for leaks, contamination and proper brake fluid level; consider flushing system if contaminated
- If wiring and hydraulic system appear good but valve does not respond, consider replacing the right‑rear load valve or hydraulic unit as per service manual
- After replacement or repair, bleed brakes as required, clear codes and perform road test/ABS self‑tests to confirm fault cleared
Likely causes
- Damaged connector or corroded pins at right‑rear load valve
- Solenoid coil inside the right‑rear valve failed or shorted
- Hydraulic contamination or debris causing valve to stick
- Open/short in the harness to the valve
- ABS hydraulic unit fault (valve body internal failure)
Fault status
Status
Right rear load valve circuit/operation fault detected by ABS/ESP control module — electrical or mechanical malfunction present.
Repair difficulty: Hard
Diagnostic time: 1.5-3.0 hours
Similar codes
Repair manuals
Manual library for LAND ROVER
320
Browse 320 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
LAND ROVER
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LAND ROVER: 2022
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Defender
- 90
- 90
- 90 S
- 90 S
- 90 V8
- 90 V8
- 90 V8 Carpathian Edition
- 90 V8 Carpathian Edition
- 90 X
- 90 X
- 90 X-Dynamic HSE
- 90 X-Dynamic HSE
- 90 X-Dynamic S
- 90 X-Dynamic S
- 90 X-Dynamic SE
- 90 X-Dynamic SE
- 110
- 110
- 110 S
- 110 S
- 110 SE
- 110 SE
- 110 V8
- 110 V8
- 110 V8 Carpathian Edition
- 110 V8 Carpathian Edition
- 110 X
- 110 X
- 110 X-Dynamic SE
- 110 X-Dynamic SE
- 110 XS Edition
- 110 XS Edition
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Discovery
- R-Dynamic HSE
- R-Dynamic HSE
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2022: Discovery R-Dynamic S
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2022: Discovery R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Discovery R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Discovery R-Dynamic S
- S
- S
-
Discovery Sport
-
Range Rover
- Autobiography, 4.4L Eng VIN 7 · 4.4L Eng VIN 72022: Range Rover Autobiography
- Autobiography, 4.4L Eng VIN 7 · 4.4L Eng VIN 72022: Range Rover Autobiography
- Autobiography, 5.0L Eng VIN E · 5.0L Eng VIN E2022: Range Rover Autobiography
- Autobiography, 5.0L Eng VIN E · 5.0L Eng VIN E2022: Range Rover Autobiography
- 2022 Range Rover Base
- 2022 Range Rover Base
- First Edition
- First Edition
- HSE Westminster, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover HSE Westminster
- HSE Westminster, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover HSE Westminster
- HSE Westminster, 5.0L Eng VIN E · 5.0L Eng VIN E2022: Range Rover HSE Westminster
- HSE Westminster, 5.0L Eng VIN E · 5.0L Eng VIN E2022: Range Rover HSE Westminster
- SE, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover SE
- SE, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover SE
- SE, 4.4L Eng VIN 7 · 4.4L Eng VIN 72022: Range Rover SE
- SE, 4.4L Eng VIN 7 · 4.4L Eng VIN 72022: Range Rover SE
- SV
- SV
- SVAutobiography
- SVAutobiography
- SVAutobiography Dynamic
- SVAutobiography Dynamic
- SVAutobiography Dynamic Blk.
- SVAutobiography Dynamic Blk.
-
Range Rover Evoque
-
Range Rover Velar
- R-Dynamic HSE
- R-Dynamic HSE
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2022: Range Rover Velar R-Dynamic S
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2022: Range Rover Velar R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover Velar R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover Velar R-Dynamic S
- S, 2.0L Eng VIN X · 2.0L Eng VIN X2022: Range Rover Velar S
- S, 2.0L Eng VIN X · 2.0L Eng VIN X2022: Range Rover Velar S
- S, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover Velar S
- S, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover Velar S
-
-
LAND ROVER: 2021
-
Discovery
- R-Dynamic HSE
- R-Dynamic HSE
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2021: Discovery R-Dynamic S
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2021: Discovery R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Discovery R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Discovery R-Dynamic S
- S
- S
-
Discovery Sport
-
Range Rover
- Autobiography, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Autobiography
- Autobiography, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Autobiography
- Autobiography Fifty Edition
- Autobiography Fifty Edition
- 2021 Range Rover Base
- 2021 Range Rover Base
- HSE, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover HSE
- HSE, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover HSE
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2021: Range Rover HSE
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2021: Range Rover HSE
- HSE Westminster, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover HSE Westminster
- HSE Westminster, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover HSE Westminster
- HSE Westminster, 5.0L Eng VIN E · 5.0L Eng VIN E2021: Range Rover HSE Westminster
- HSE Westminster, 5.0L Eng VIN E · 5.0L Eng VIN E2021: Range Rover HSE Westminster
- SVAutobiography
- SVAutobiography
- SVAutobiography Dynamic
- SVAutobiography Dynamic
- SVAutobiography Dynamic Blk.
- SVAutobiography Dynamic Blk.
-
Range Rover Evoque
-
Range Rover Sport
- Autobiography, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Sport Autobiography
- Autobiography, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Sport Autobiography
- Autobiography, 5.0L Eng VIN E · 5.0L Eng VIN E2021: Range Rover Sport Autobiography
- Autobiography, 5.0L Eng VIN E · 5.0L Eng VIN E2021: Range Rover Sport Autobiography
- Autobiography Dynamic, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Sport Autobiography Dynamic
- Autobiography Dynamic, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Sport Autobiography Dynamic
- Autobiography Dynamic, 5.0L Eng VIN E · 5.0L Eng VIN E2021: Range Rover Sport Autobiography Dynamic
- Autobiography Dynamic, 5.0L Eng VIN E · 5.0L Eng VIN E2021: Range Rover Sport Autobiography Dynamic
- HSE Dynamic
- HSE Dynamic
- HSE Silver Edition, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Sport HSE Silver Edition
- HSE Silver Edition, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Sport HSE Silver Edition
- HSE Silver Edition, 3.0L Eng VIN K · 3.0L Eng VIN K2021: Range Rover Sport HSE Silver Edition
- HSE Silver Edition, 3.0L Eng VIN K · 3.0L Eng VIN K2021: Range Rover Sport HSE Silver Edition
- HSE Silver Edition, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover Sport HSE Silver Edition
- HSE Silver Edition, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover Sport HSE Silver Edition
- HST
- HST
- SE
- SE
- SVR
- SVR
- SVR Carbon Edition
- SVR Carbon Edition
-
Range Rover Velar
- R-Dynamic HSE
- R-Dynamic HSE
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2021: Range Rover Velar R-Dynamic S
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2021: Range Rover Velar R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover Velar R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover Velar R-Dynamic S
- S, 2.0L Eng VIN X · 2.0L Eng VIN X2021: Range Rover Velar S
- S, 2.0L Eng VIN X · 2.0L Eng VIN X2021: Range Rover Velar S
- S, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover Velar S
- S, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover Velar S
-
LAND ROVER: 2020
-
Defender
- 90 First Edition
- 90 First Edition
- 110 First Edition
- 110 First Edition
- 110 HSE
- 110 HSE
- 110 S
- 110 S
- 110 SE
- 110 SE
- 110 X
- 110 X
- 110, 2.0L Eng VIN X · 2.0L Eng VIN X2020: Defender 110
- 110, 2.0L Eng VIN X · 2.0L Eng VIN X2020: Defender 110
- 110, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Defender 110
- 110, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Defender 110
-
Discovery
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Discovery HSE
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Discovery HSE
- HSE, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Discovery HSE
- HSE, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Discovery HSE
- HSE Luxury, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Discovery HSE Luxury
- HSE Luxury, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Discovery HSE Luxury
- HSE Luxury, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Discovery HSE Luxury
- HSE Luxury, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Discovery HSE Luxury
- Landmark
- Landmark
- SE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Discovery SE
- SE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Discovery SE
- SE, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Discovery SE
- SE, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Discovery SE
-
Range Rover
- Autobiography
- Autobiography
- Base, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover Base
- Base, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover Base
- Base, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover Base
- Base, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover Base
- HSE, 2.0L Eng VIN Y · 2.0L Eng VIN Y2020: Range Rover HSE
- HSE, 2.0L Eng VIN Y · 2.0L Eng VIN Y2020: Range Rover HSE
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover HSE
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover HSE
- HSE, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover HSE
- HSE, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover HSE
- HSE, 5.0L Eng VIN E · 5.0L Eng VIN E2020: Range Rover HSE
- HSE, 5.0L Eng VIN E · 5.0L Eng VIN E2020: Range Rover HSE
- SVAutobiography
- SVAutobiography
- SVAutobiography Dynamic
- SVAutobiography Dynamic
-
Range Rover Evoque
-
Range Rover Sport
- Autobiography Dynamic, 2.0L Eng VIN Y · 2.0L Eng VIN Y2020: Range Rover Sport Autobiography Dynamic
- Autobiography Dynamic, 2.0L Eng VIN Y · 2.0L Eng VIN Y2020: Range Rover Sport Autobiography Dynamic
- Autobiography Dynamic, 5.0L Eng VIN E · 5.0L Eng VIN E2020: Range Rover Sport Autobiography Dynamic
- Autobiography Dynamic, 5.0L Eng VIN E · 5.0L Eng VIN E2020: Range Rover Sport Autobiography Dynamic
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover Sport HSE
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover Sport HSE
- HSE, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover Sport HSE
- HSE, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover Sport HSE
- HSE, 5.0L Eng VIN E · 5.0L Eng VIN E2020: Range Rover Sport HSE
- HSE, 5.0L Eng VIN E · 5.0L Eng VIN E2020: Range Rover Sport HSE
- HSE Dynamic
- HSE Dynamic
- HSE PHEV
- HSE PHEV
- HST
- HST
- SE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover Sport SE
- SE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover Sport SE
- SE, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover Sport SE
- SE, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover Sport SE
- SVR
- SVR
-
Range Rover Velar
- R-Dynamic HSE
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Code
C1095
Other
C — Chassis
ABS Hydraulic Pump Motor Circuit Failure
AI status
Completed
Completed
100%
Causes
- Open or short in valve wiring or connectors
- Corroded/poor connector or terminal at the valve
- Failed/right‑rear solenoid coil in the hydraulic modulator
- Hydraulic blockage or internal mechanical seizure of the valve
- Contaminated or degraded brake fluid causing sticking
- Faulty ABS/ESP control module or driver transistor
Symptoms
- ABS/ESP warning lamp illuminated on the dash
- Reduced or inconsistent braking at right‑rear wheel
- Traction control or stability control interventions may be disabled or limited
- ABS activation abnormal during braking (pulsation or reduced function)
- Possible diagnostic trouble codes for related ABS circuits or wheel speed sensors
What to check
- Read all stored and pending ABS/ESP codes and freeze frame data with a compatible scanner
- Check for related codes (wheel speed sensors, CAN bus, pump faults)
- Visually inspect wiring and connector at the right‑rear load valve for corrosion, damage, or water ingress
- Check brake fluid level and condition for contamination or discoloration
- Inspect fuses/relays for ABS power and module supplies
- Backprobe valve connector and measure supply voltage and ground with ignition ON
Signal parameters
- Supply voltage at valve connector: approx. battery voltage when powered (typically ~12V)
- Command signal type: PWM or switched supply from ABS module (duty cycle varies with braking demand)
- Solenoid coil resistance: typically low ohms range (model dependent; often ~5–50 Ω) — consult model service data
- Current draw when energized: expected small amp range (module specific)
- Controller diagnostic status and valve command states available via scan tool (on/off or PWM duty%)
- Hydraulic pressure changes reported by ABS module during valve actuation (if supported)
Diagnostic algorithm
- Safety first: vehicle on level ground, parking brake applied, ignition off, follow manufacturer safety and SRS procedures
- Connect scanner and record all ABS/ESP codes and live data; note freeze frame
- Clear codes and attempt to re‑create fault by cycling ignition and performing a brake test while monitoring the right‑rear valve command and status
- Visually inspect the valve connector and harness for corrosion, chafing, or damage; repair any wiring faults
- With key ON (engine off), backprobe connector: verify battery supply to valve connector and good ground
- Command the valve ON/OFF or request diagnostic active tests via scan tool while monitoring voltage/current; observe whether valve responds (listen for click)
- Measure solenoid coil resistance and compare to service specs; open or short indicates faulty solenoid
- If electrical checks pass, inspect hydraulic side: check for leaks, contamination and proper brake fluid level; consider flushing system if contaminated
- If wiring and hydraulic system appear good but valve does not respond, consider replacing the right‑rear load valve or hydraulic unit as per service manual
- After replacement or repair, bleed brakes as required, clear codes and perform road test/ABS self‑tests to confirm fault cleared
Likely causes
- Damaged connector or corroded pins at right‑rear load valve
- Solenoid coil inside the right‑rear valve failed or shorted
- Hydraulic contamination or debris causing valve to stick
- Open/short in the harness to the valve
- ABS hydraulic unit fault (valve body internal failure)
Fault status
Status
Right rear load valve circuit/operation fault detected by ABS/ESP control module — electrical or mechanical malfunction present.
Repair difficulty: Hard
Diagnostic time: 1.5-3.0 hours
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