Code
C1922
LAND ROVER
C — Chassis
Solenoid actuator circuit of power steering - open
Views:
UK: 6
EN: 8
RU: 7
AI status
Completed
Completed
100%
Causes
- Open or broken wiring in solenoid circuit
- Corroded/loose connector or pin at solenoid or control module
- Failed solenoid coil (open internally)
- Blown fuse or faulty relay supplying the solenoid circuit
- Poor ground or power supply to steering control module
- Intermittent connector contact due to water ingress or physical damage
Symptoms
- Power steering warning lamp or message on dash
- Reduced or heavy steering assist, especially at low speed
- Intermittent or complete loss of variable assist
- Diagnostic trouble code stored; possible limp steering mode
- Possible steering assist jerkiness or noise when attempting to steer
What to check
- Read fault memory and freeze frame data with scan tool; note ignition/vehicle conditions when fault occurred
- Visually inspect solenoid connector and harness for corrosion, damage, chafing, or water intrusion
- Check relevant fuses and relays for the steering system
- Wiggle test harness while monitoring live data to see intermittent returns
- Measure supply voltage at solenoid harness with key on/engine off and with system commanded (use proper safety precautions)
- Measure continuity between solenoid connector and steering control module connector
Signal parameters
- Supply voltage: approximately battery voltage present at solenoid supply pin with ignition ON (key ON, engine OFF)
- Control: module may use ground switching or PWM — when commanded expect switching/pulse (duty cycle varies by command)
- Coil resistance: normal solenoid should show finite low-to-moderate ohms; an open circuit reads as infinite/OL on ohmmeter
- Continuity: low-resistance continuity between solenoid connector and module pin; high resistance or open indicates wiring fault
Diagnostic algorithm
- Obtain freeze frame and live data from steering control module; confirm C1922 is current or historical
- Visually inspect solenoid connector, pins and harness for corrosion, bent pins, water intrusion, damage, or repair history
- Check steering system fuses and relays; replace if blown and re-test
- Disconnect battery before performing connector repairs if specified by manufacturer; then disconnect solenoid connector and inspect pins closely
- With connector disconnected, measure solenoid coil resistance to ground/return. If infinite/OL, suspect internal solenoid failure and replace solenoid
- With connector disconnected and ignition ON, measure supply voltage at the harness side; confirm presence of battery voltage on supply pin. If no supply, trace power feed, fuses, and relays
- Using an appropriate back-probe and with technician present in vehicle, command the solenoid on/off while monitoring for ground switching or PWM from steering control module. If module does not command, suspect module or communications fault
- Perform continuity check between solenoid harness connector and steering control module pins. Repair any open circuits, broken wires, or corroded terminals found
- If wiring and solenoid are good, follow manufacturer procedure to test/replace steering control module. Re-program or calibrate module if replaced, then clear codes and road test
- After repair, clear DTCs and verify no reoccurrence under the same conditions recorded in freeze frame
Likely causes
- Damaged connector or corroded terminals at solenoid
- Broken/shorted harness between solenoid and steering module
- Failed solenoid coil (open)
- Blown fuse or poor power/ground to module
Fault status
Status
Power steering solenoid actuator circuit open — continuity lost in solenoid control circuit; steering assist may be reduced or disabled.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
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Land Rover Defender 300Tdi — Workshop Manual (1996 model year)
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Code
C1922
MITSUBISHI
C — Chassis
Tire air pressure low,Tire2
Views:
UK: 6
EN: 10
RU: 13
AI status
Completed
Completed
100%
Causes
- Open or broken wiring in solenoid circuit
- Corroded/loose connector or pin at solenoid or control module
- Failed solenoid coil (open internally)
- Blown fuse or faulty relay supplying the solenoid circuit
- Poor ground or power supply to steering control module
- Intermittent connector contact due to water ingress or physical damage
Symptoms
- Power steering warning lamp or message on dash
- Reduced or heavy steering assist, especially at low speed
- Intermittent or complete loss of variable assist
- Diagnostic trouble code stored; possible limp steering mode
- Possible steering assist jerkiness or noise when attempting to steer
What to check
- Read fault memory and freeze frame data with scan tool; note ignition/vehicle conditions when fault occurred
- Visually inspect solenoid connector and harness for corrosion, damage, chafing, or water intrusion
- Check relevant fuses and relays for the steering system
- Wiggle test harness while monitoring live data to see intermittent returns
- Measure supply voltage at solenoid harness with key on/engine off and with system commanded (use proper safety precautions)
- Measure continuity between solenoid connector and steering control module connector
Signal parameters
- Supply voltage: approximately battery voltage present at solenoid supply pin with ignition ON (key ON, engine OFF)
- Control: module may use ground switching or PWM — when commanded expect switching/pulse (duty cycle varies by command)
- Coil resistance: normal solenoid should show finite low-to-moderate ohms; an open circuit reads as infinite/OL on ohmmeter
- Continuity: low-resistance continuity between solenoid connector and module pin; high resistance or open indicates wiring fault
Diagnostic algorithm
- Obtain freeze frame and live data from steering control module; confirm C1922 is current or historical
- Visually inspect solenoid connector, pins and harness for corrosion, bent pins, water intrusion, damage, or repair history
- Check steering system fuses and relays; replace if blown and re-test
- Disconnect battery before performing connector repairs if specified by manufacturer; then disconnect solenoid connector and inspect pins closely
- With connector disconnected, measure solenoid coil resistance to ground/return. If infinite/OL, suspect internal solenoid failure and replace solenoid
- With connector disconnected and ignition ON, measure supply voltage at the harness side; confirm presence of battery voltage on supply pin. If no supply, trace power feed, fuses, and relays
- Using an appropriate back-probe and with technician present in vehicle, command the solenoid on/off while monitoring for ground switching or PWM from steering control module. If module does not command, suspect module or communications fault
- Perform continuity check between solenoid harness connector and steering control module pins. Repair any open circuits, broken wires, or corroded terminals found
- If wiring and solenoid are good, follow manufacturer procedure to test/replace steering control module. Re-program or calibrate module if replaced, then clear codes and road test
- After repair, clear DTCs and verify no reoccurrence under the same conditions recorded in freeze frame
Likely causes
- Damaged connector or corroded terminals at solenoid
- Broken/shorted harness between solenoid and steering module
- Failed solenoid coil (open)
- Blown fuse or poor power/ground to module
Fault status
Status
Power steering solenoid actuator circuit open — continuity lost in solenoid control circuit; steering assist may be reduced or disabled.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
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Code
C1922
Other
C — Chassis
VAPS Solenoid Actuator Output Circuit Open
Views:
UK: 17
EN: 19
RU: 21
AI status
Completed
Completed
100%
Causes
- Open or broken wiring in solenoid circuit
- Corroded/loose connector or pin at solenoid or control module
- Failed solenoid coil (open internally)
- Blown fuse or faulty relay supplying the solenoid circuit
- Poor ground or power supply to steering control module
- Intermittent connector contact due to water ingress or physical damage
Symptoms
- Power steering warning lamp or message on dash
- Reduced or heavy steering assist, especially at low speed
- Intermittent or complete loss of variable assist
- Diagnostic trouble code stored; possible limp steering mode
- Possible steering assist jerkiness or noise when attempting to steer
What to check
- Read fault memory and freeze frame data with scan tool; note ignition/vehicle conditions when fault occurred
- Visually inspect solenoid connector and harness for corrosion, damage, chafing, or water intrusion
- Check relevant fuses and relays for the steering system
- Wiggle test harness while monitoring live data to see intermittent returns
- Measure supply voltage at solenoid harness with key on/engine off and with system commanded (use proper safety precautions)
- Measure continuity between solenoid connector and steering control module connector
Signal parameters
- Supply voltage: approximately battery voltage present at solenoid supply pin with ignition ON (key ON, engine OFF)
- Control: module may use ground switching or PWM — when commanded expect switching/pulse (duty cycle varies by command)
- Coil resistance: normal solenoid should show finite low-to-moderate ohms; an open circuit reads as infinite/OL on ohmmeter
- Continuity: low-resistance continuity between solenoid connector and module pin; high resistance or open indicates wiring fault
Diagnostic algorithm
- Obtain freeze frame and live data from steering control module; confirm C1922 is current or historical
- Visually inspect solenoid connector, pins and harness for corrosion, bent pins, water intrusion, damage, or repair history
- Check steering system fuses and relays; replace if blown and re-test
- Disconnect battery before performing connector repairs if specified by manufacturer; then disconnect solenoid connector and inspect pins closely
- With connector disconnected, measure solenoid coil resistance to ground/return. If infinite/OL, suspect internal solenoid failure and replace solenoid
- With connector disconnected and ignition ON, measure supply voltage at the harness side; confirm presence of battery voltage on supply pin. If no supply, trace power feed, fuses, and relays
- Using an appropriate back-probe and with technician present in vehicle, command the solenoid on/off while monitoring for ground switching or PWM from steering control module. If module does not command, suspect module or communications fault
- Perform continuity check between solenoid harness connector and steering control module pins. Repair any open circuits, broken wires, or corroded terminals found
- If wiring and solenoid are good, follow manufacturer procedure to test/replace steering control module. Re-program or calibrate module if replaced, then clear codes and road test
- After repair, clear DTCs and verify no reoccurrence under the same conditions recorded in freeze frame
Likely causes
- Damaged connector or corroded terminals at solenoid
- Broken/shorted harness between solenoid and steering module
- Failed solenoid coil (open)
- Blown fuse or poor power/ground to module
Fault status
Status
Power steering solenoid actuator circuit open — continuity lost in solenoid control circuit; steering assist may be reduced or disabled.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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