Code
C1296
LAND ROVER
C — Chassis
Electronic Stability Control (ESC) System Fault
Views:
UK: 10
EN: 21
RU: 9
AI status
Completed
Completed
100%
Causes
- Faulty ABS/ESC control module
- Failed wheel speed sensor or sensor ring (tone ring)
- Steering angle sensor fault or out-of-calibration
- Yaw rate / lateral acceleration sensor fault
- Brake pressure sensor or hydraulic modulator failure
- Open/short in wiring or poor connector contact to sensors or module
Symptoms
- ESC/DSC/DSC OFF warning lamp illuminated on instrument cluster
- ABS warning lamp may also be lit
- Loss of ESC traction control or stability intervention
- Traction control disabled message displayed
- Possible degraded braking/ABS function under hard braking
- Fault present intermittently or persistent lockout of ESC features
What to check
- Connect a capable diagnostic scanner and record C1296 and any other stored/related codes and freeze frame data
- Check battery voltage with key on and during cranking; verify charging system voltage
- Inspect ABS/ESC module fuses and relays
- Visual inspection of wiring and connectors at ABS module, wheel speed sensors, steering angle sensor and yaw sensor for damage, corrosion or looseness
- Verify CAN/vehicle communication to ABS/ESC module using scanner (module present, responding, and sending messages)
- Check for related chassis or powertrain codes that could affect ESC operation
Signal parameters
- Wheel speed sensor: AC pulse or frequency proportional to wheel speed (check for missing pulses, noise or open circuit)
- Steering angle sensor: angle (degrees) and torque sense values; range should be smooth around center and calibratable
- Yaw rate sensor: deg/s output consistent with vehicle turning; compare to calculated yaw from wheel speeds
- Lateral acceleration sensor: g values change with cornering
- Brake pressure sensor/modulator: pressure or valve activation signals during ABS/ESC events
- ABS/ESC module supply voltage: nominal battery voltage (~12–14.5 V) and stable during tests
Diagnostic algorithm
- Read and record all stored codes and freeze-frame data from ABS/ESC and related modules. Note occurrence conditions.
- Check battery state of charge and charging system; recharge or load-test battery if voltage is low. Repair charging/battery as needed.
- Visually inspect fuses, relays and all connectors to ABS/ESC module, wheel sensors, steering angle and yaw sensors. Repair any damage or corrosion.
- Verify module communication on the CAN bus. If the ABS/ESC module is not present or not communicating, trace power/ground and CAN wiring before replacing modules.
- Check power and ground circuits to the ABS/ESC module (voltage and ground resistance). Repair wiring faults.
- Test each wheel speed sensor for correct resistance or AC output and inspect tone rings for damage or contamination; replace sensor or repair tone ring as required.
- Check steering angle sensor: verify offset value and perform steering angle calibration after any steering or suspension work or after battery disconnect.
- Monitor live yaw rate and lateral acceleration vs calculated yaw from wheel speeds; replace yaw sensor if outputs are implausible.
- Perform available actuator tests (pump/motor, valves) using diagnostic tool to confirm module can operate components.
- Clear codes and perform a road test while monitoring relevant live data. If code returns, follow targeted tests indicated by updated freeze frame and live data.
- If wiring, sensors and power/communications are good and module diagnostics indicate internal fault, consider ABS/ESC module repair or replacement and perform module programming/coding and relearns as required.
- Always finalize with service procedures from the factory workshop manual and perform required calibrations and relearns after component or module replacement.
Likely causes
- Intermittent or failed wheel speed sensor on one corner causing inconsistent wheel speed data
- Steering angle sensor not aligned after suspension/steering work or battery disconnection
- Damaged wiring harness behind a wheel or at the ABS module connector
- Yaw rate sensor feeding implausible values to ESC
- Low supply voltage to ABS/ESC module due to weak battery or corroded ground
Fault status
Status
Electronic Stability Control (ESC) system fault stored (C1296). ESC functionality may be limited or disabled. See ABS/ESC module data and related sensors for more information.
Repair difficulty: Medium
Diagnostic time: 1.5 to 3.0 hours
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