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Home / DTC / C1297 — ABS/Traction Control System Fault

C1297 — ABS/Traction Control System Fault

Detailed page for trouble code C1297.

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C1297

Generic C — Chassis

ABS/Traction Control System Fault

Brand: Generic
Type: C — Chassis
Views: UK: 3 EN: 9 RU: 6
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Communication fault between ABS/traction control module and other vehicle networks
  • Internal fault in ABS/traction control module
  • Open/short or intermittent wiring to sensors or actuators
  • Failed wheel speed sensor or damaged tone ring
  • Low or missing supply voltage (battery, fuses, relays)
  • Faulty pump or motor in ABS hydraulic unit

Symptoms

  • ABS, traction control, and/or stability warning lamp illuminated
  • ABS/traction control disabled or operating intermittently
  • ABS pump running continuously or not running when required
  • Traction control intervention unavailable during wheel slip
  • Inconsistent or missing wheel speed readouts on scan tool
  • Possible abnormal braking feel or locking under heavy braking

What to check

  • Connect a capable scan tool and record C1297 plus any other stored codes and freeze-frame data
  • Verify battery voltage and charging system (engine off and running)
  • Inspect ABS module power/ground/fuse(s)/relay(s) for good connections and presence of voltage
  • Visually inspect wheel speed sensors, tone rings, and sensor connectors for damage, contamination or missing teeth
  • Check wiring harnesses for chafing, breaks, corrosion and secure connector pins
  • Check for CAN/LIN network communication faults and verify module presence on the bus

Signal parameters

  • Battery/system voltage at ABS module: ~12–14.5 V (engine running around 13.5–14.5 V)
  • Wheel speed sensor (passive/VR): AC voltage amplitude increases with wheel speed; often 0–1 V AC at low speed up to several volts at higher speeds
  • Wheel speed sensor (active/Hall): digital/square wave 0–5 V (or 0–12 V on some systems) with frequency proportional to wheel speed
  • Wheel speed readings on scan tool: all four wheels should show similar speed when wheels rotate together
  • CAN bus idle voltages: CAN_H ~2.5–3.5 V, CAN_L ~1.5–2.5 V (differential ~2.0 V) — verify communications present
  • ABS pump motor current draw: nominal low at rest; increased when pump commanded — compare to spec if available

Diagnostic algorithm

  1. Read and record all stored codes and freeze-frame data with a professional scan tool. Note any related chassis or network codes.
  2. Confirm battery voltage and proper charging system operation. Low voltage can cause intermittent ABS faults.
  3. Visually inspect ABS module connectors, fuses and relays. Repair loose or corroded terminals and replace blown fuses.
  4. Inspect each wheel speed sensor and tone ring for damage, contamination or missing teeth; clean connectors and reseat.
  5. Using a scope or multimeter, spin each wheel and verify expected sensor signal (AC amplitude or digital square wave); compare all four wheels.
  6. Backprobe ABS module sensor inputs and check for continuity/shorts to ground or power in wiring harness if a sensor signal is absent or noisy.
  7. Check CAN/LIN communication to ABS module. If the module is offline, diagnose network wiring, bus termination, and other module presence.
  8. If sensor signals, wiring and power/ground are good, run ABS module self-tests via scan tool (pump/valve activation). Observe operation and current draw.
  9. If module fails self-tests or has internal faults, consider module reprogramming, repair or replacement per manufacturer guidance. Verify vehicle-specific procedures for module coding.
  10. Clear codes, perform a controlled road test while monitoring live data to confirm proper wheel speed signal behavior and that C1297 does not return.

Likely causes

  • Corroded or loose connector at an ABS wheel speed sensor
  • Damaged wheel speed sensor tone ring (missing teeth, excessive corrosion)
  • Open or short in wheel speed sensor wiring harness (chafing, pinched)
  • Blown ABS fuse or failed traction control relay
  • Faulty ABS control module or internal component failure
  • Poor battery condition or low system voltage during operation

Fault status

⚠️ Status
ABS/Traction Control System Fault stored. Warning lamp illuminated; ABS/traction control may be disabled. Check for related sensor, wiring, power, and communication faults.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0 - 3.0 hours

Similar codes

C1201 C1210 C1233 C1236 C1259
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Code

C1297

HUMMER C — Chassis

PCM Indicated Brake Extended Travel Switch Failure

Brand: HUMMER
Type: C — Chassis
Views: UK: 15 EN: 30 RU: 18
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Communication fault between ABS/traction control module and other vehicle networks
  • Internal fault in ABS/traction control module
  • Open/short or intermittent wiring to sensors or actuators
  • Failed wheel speed sensor or damaged tone ring
  • Low or missing supply voltage (battery, fuses, relays)
  • Faulty pump or motor in ABS hydraulic unit

Symptoms

  • ABS, traction control, and/or stability warning lamp illuminated
  • ABS/traction control disabled or operating intermittently
  • ABS pump running continuously or not running when required
  • Traction control intervention unavailable during wheel slip
  • Inconsistent or missing wheel speed readouts on scan tool
  • Possible abnormal braking feel or locking under heavy braking

What to check

  • Connect a capable scan tool and record C1297 plus any other stored codes and freeze-frame data
  • Verify battery voltage and charging system (engine off and running)
  • Inspect ABS module power/ground/fuse(s)/relay(s) for good connections and presence of voltage
  • Visually inspect wheel speed sensors, tone rings, and sensor connectors for damage, contamination or missing teeth
  • Check wiring harnesses for chafing, breaks, corrosion and secure connector pins
  • Check for CAN/LIN network communication faults and verify module presence on the bus

Signal parameters

  • Battery/system voltage at ABS module: ~12–14.5 V (engine running around 13.5–14.5 V)
  • Wheel speed sensor (passive/VR): AC voltage amplitude increases with wheel speed; often 0–1 V AC at low speed up to several volts at higher speeds
  • Wheel speed sensor (active/Hall): digital/square wave 0–5 V (or 0–12 V on some systems) with frequency proportional to wheel speed
  • Wheel speed readings on scan tool: all four wheels should show similar speed when wheels rotate together
  • CAN bus idle voltages: CAN_H ~2.5–3.5 V, CAN_L ~1.5–2.5 V (differential ~2.0 V) — verify communications present
  • ABS pump motor current draw: nominal low at rest; increased when pump commanded — compare to spec if available

Diagnostic algorithm

  1. Read and record all stored codes and freeze-frame data with a professional scan tool. Note any related chassis or network codes.
  2. Confirm battery voltage and proper charging system operation. Low voltage can cause intermittent ABS faults.
  3. Visually inspect ABS module connectors, fuses and relays. Repair loose or corroded terminals and replace blown fuses.
  4. Inspect each wheel speed sensor and tone ring for damage, contamination or missing teeth; clean connectors and reseat.
  5. Using a scope or multimeter, spin each wheel and verify expected sensor signal (AC amplitude or digital square wave); compare all four wheels.
  6. Backprobe ABS module sensor inputs and check for continuity/shorts to ground or power in wiring harness if a sensor signal is absent or noisy.
  7. Check CAN/LIN communication to ABS module. If the module is offline, diagnose network wiring, bus termination, and other module presence.
  8. If sensor signals, wiring and power/ground are good, run ABS module self-tests via scan tool (pump/valve activation). Observe operation and current draw.
  9. If module fails self-tests or has internal faults, consider module reprogramming, repair or replacement per manufacturer guidance. Verify vehicle-specific procedures for module coding.
  10. Clear codes, perform a controlled road test while monitoring live data to confirm proper wheel speed signal behavior and that C1297 does not return.

Likely causes

  • Corroded or loose connector at an ABS wheel speed sensor
  • Damaged wheel speed sensor tone ring (missing teeth, excessive corrosion)
  • Open or short in wheel speed sensor wiring harness (chafing, pinched)
  • Blown ABS fuse or failed traction control relay
  • Faulty ABS control module or internal component failure
  • Poor battery condition or low system voltage during operation

Fault status

⚠️ Status
ABS/Traction Control System Fault stored. Warning lamp illuminated; ABS/traction control may be disabled. Check for related sensor, wiring, power, and communication faults.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0 - 3.0 hours

Similar codes

C1201 C1210 C1233 C1236 C1259
Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email
Code

C1297

LAND ROVER C — Chassis

ABS hydraulic pressure sensor circuit fault

Brand: LAND ROVER
Type: C — Chassis
Views: UK: 8 EN: 18 RU: 14
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Communication fault between ABS/traction control module and other vehicle networks
  • Internal fault in ABS/traction control module
  • Open/short or intermittent wiring to sensors or actuators
  • Failed wheel speed sensor or damaged tone ring
  • Low or missing supply voltage (battery, fuses, relays)
  • Faulty pump or motor in ABS hydraulic unit

Symptoms

  • ABS, traction control, and/or stability warning lamp illuminated
  • ABS/traction control disabled or operating intermittently
  • ABS pump running continuously or not running when required
  • Traction control intervention unavailable during wheel slip
  • Inconsistent or missing wheel speed readouts on scan tool
  • Possible abnormal braking feel or locking under heavy braking

What to check

  • Connect a capable scan tool and record C1297 plus any other stored codes and freeze-frame data
  • Verify battery voltage and charging system (engine off and running)
  • Inspect ABS module power/ground/fuse(s)/relay(s) for good connections and presence of voltage
  • Visually inspect wheel speed sensors, tone rings, and sensor connectors for damage, contamination or missing teeth
  • Check wiring harnesses for chafing, breaks, corrosion and secure connector pins
  • Check for CAN/LIN network communication faults and verify module presence on the bus

Signal parameters

  • Battery/system voltage at ABS module: ~12–14.5 V (engine running around 13.5–14.5 V)
  • Wheel speed sensor (passive/VR): AC voltage amplitude increases with wheel speed; often 0–1 V AC at low speed up to several volts at higher speeds
  • Wheel speed sensor (active/Hall): digital/square wave 0–5 V (or 0–12 V on some systems) with frequency proportional to wheel speed
  • Wheel speed readings on scan tool: all four wheels should show similar speed when wheels rotate together
  • CAN bus idle voltages: CAN_H ~2.5–3.5 V, CAN_L ~1.5–2.5 V (differential ~2.0 V) — verify communications present
  • ABS pump motor current draw: nominal low at rest; increased when pump commanded — compare to spec if available

Diagnostic algorithm

  1. Read and record all stored codes and freeze-frame data with a professional scan tool. Note any related chassis or network codes.
  2. Confirm battery voltage and proper charging system operation. Low voltage can cause intermittent ABS faults.
  3. Visually inspect ABS module connectors, fuses and relays. Repair loose or corroded terminals and replace blown fuses.
  4. Inspect each wheel speed sensor and tone ring for damage, contamination or missing teeth; clean connectors and reseat.
  5. Using a scope or multimeter, spin each wheel and verify expected sensor signal (AC amplitude or digital square wave); compare all four wheels.
  6. Backprobe ABS module sensor inputs and check for continuity/shorts to ground or power in wiring harness if a sensor signal is absent or noisy.
  7. Check CAN/LIN communication to ABS module. If the module is offline, diagnose network wiring, bus termination, and other module presence.
  8. If sensor signals, wiring and power/ground are good, run ABS module self-tests via scan tool (pump/valve activation). Observe operation and current draw.
  9. If module fails self-tests or has internal faults, consider module reprogramming, repair or replacement per manufacturer guidance. Verify vehicle-specific procedures for module coding.
  10. Clear codes, perform a controlled road test while monitoring live data to confirm proper wheel speed signal behavior and that C1297 does not return.

Likely causes

  • Corroded or loose connector at an ABS wheel speed sensor
  • Damaged wheel speed sensor tone ring (missing teeth, excessive corrosion)
  • Open or short in wheel speed sensor wiring harness (chafing, pinched)
  • Blown ABS fuse or failed traction control relay
  • Faulty ABS control module or internal component failure
  • Poor battery condition or low system voltage during operation

Fault status

⚠️ Status
ABS/Traction Control System Fault stored. Warning lamp illuminated; ABS/traction control may be disabled. Check for related sensor, wiring, power, and communication faults.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0 - 3.0 hours

Similar codes

C1201 C1210 C1233 C1236 C1259
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Land Rover Defender 300Tdi — Workshop Manual (1996 model year)

Workshop Manual
Defender 300Tdi Years: 1996 Manual in English 7.5 MB
Short description

Official workshop manual for the Land Rover Defender 300Tdi (from 1996 model year). Contains specifications, adjustment, fault diagnosis and step-by-step repair and overhaul procedures for engine, transmission, axles, suspension, brakes, electrical and body. Intended for dealer workshops and trained technicians.

199,00 UAH
Contents
Key sections:
  • 01 INTRODUCTION
  • 04 GENERAL SPECIFICATION DATA
  • 05 ENGINE TUNING DATA
  • 07 GENERAL FITTING REMINDERS
  • 09 LUBRICANTS, FLUIDS AND CAPACITIES
  • 10 MAINTENANCE
  • 12 ENGINE Tdi
  • - Description and operation
  • - Fault diagnosis
  • - Adjustment
  • - Repair and overhaul procedures
  • 19 FUEL SYSTEM Tdi
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Workshop Manual
Defender Years: 1999–2002 Manual in English 7.6 MB
Short description

Workshop Manual Supplement and Body Repair Manual for the Land Rover Defender. Includes general specifications, maintenance schedules, tuning data and step‑by‑step repair procedures for engine, transmission, suspension, brakes, electrical and body repairs. Covers Defender models from 1999 and 2002 model years.

199,00 UAH
Contents
Key sections:
  • 01 - INTRODUCTION
  • - Introduction
  • - Dimensions
  • - References
  • - Repairs and replacements
  • - Poisonous substances
  • - Fuel handling precautions
  • - Synthetic rubber
  • - Recommended sealants
  • - Used engine oil precautions
  • - Accessories and conversions
  • - Wheels and tyres
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Land Rover Range Rover — Electrical Library (LRL 0453ENG, 2002)

Workshop Manual
Manual in English Pages: 494 7.1 MB
Short description

Land Rover Range Rover Electrical Library (LRL 0453ENG). Comprehensive manual covering fuse details, earth points, system descriptions, diagnostics and connector pin-outs for electrical troubleshooting and repair. Intended for technicians and service workshops.

199,00 UAH
Contents
Key sections:
  • 1 INTRODUCTION
  • 1.1 About this document
  • 1.2 Battery voltage
  • 1.3 Electrical precautions
  • 1.4 Battery disconnecting / charging
  • 1.5 Disciplines / greases
  • 1.6 Abbreviations
  • 1.7 HeVAC, sensors abbreviations
  • 1.8 How to use this document
  • 1.9 Connector detail format
  • 1.10 Fault diagnosis
  • 1.11 Wire colour codes
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