Code
C1288
HUMMER
C — Chassis
Steering Sensor Circuit Malfunction
Views:
UK: 15
EN: 22
RU: 21
AI status
Completed
Completed
100%
Causes
- Open or shorted wiring to steering sensor
- Corroded, loose or damaged connector at the steering column or EPS module
- Failed steering angle/torque/position sensor
- Faulty clock spring (spiral cable) or steering wheel connector
- Poor power or ground to the sensor or EPS module
- Water intrusion or corrosion in connector/harness
Symptoms
- Steering assist reduced or lost (hard steering) or inconsistent assist
- Steering column/Service Steering or EPS warning lamp illuminated
- Electronic stability/ABS/TCS warnings or degraded functionality
- Steering angle readout incorrect or stored zero/incorrect offset
- DTC present and may be intermittent depending on vehicle movement or temperature
What to check
- Read DTCs and freeze frame data with a capable scan tool; note related codes and module time stamp
- Check for other related codes (ABS, ESC, U-codes) that may indicate comms issues
- Visually inspect steering column area, connectors, and wiring harness for damage, corrosion, or water intrusion
- Inspect clock spring/spiral cable and steering wheel connectors for wear or damage
- Verify fuses and power/ground to steering sensor and EPS module per wiring diagram
- Backprobe sensor connector and EPS module pins while turning wheel to observe signal behavior
Signal parameters
- Typical sensor circuits use: 5 V reference (or vehicle reference), ground, and one or more signal lines (analog voltage ~0.5–4.5 V) or digital/PWM outputs
- Some systems provide steering angle over CAN bus (message ID and update rate visible on diagnostic tool)
- Signal should be stable at center and change smoothly and linearly as the wheel is turned; watch for dropouts, spikes, or stuck values
- Resistance or continuity from sensor connector to EPS module ground/power pins should be within specification (consult service data)
Diagnostic algorithm
- Connect a scan tool, record current codes, freeze frame and live data for steering angle/torque/sensor outputs and module status.
- Check for related communications codes (U-codes). If comms lost, diagnose network or module power/ground first.
- Visually inspect connectors, wiring harness, clock spring and sensor mounting for damage or corrosion. Repair any obvious physical faults.
- With key on (engine off) backprobe sensor connector: verify reference voltage present, good ground, and sensor output signal at rest. Compare to expected ranges from service data.
- Turn steering wheel slowly while monitoring sensor output for smooth change. Use multimeter or oscilloscope to identify noise, dropouts or erratic signals.
- Perform continuity/resistance checks from sensor connector to EPS module connector to locate opens/shorts. Wiggle harness to reproduce intermittent faults.
- If wiring and connectors test good but signal is out of range or inconsistent, replace the steering sensor (or clock spring if wiring within it is damaged) and perform required calibration/relearn procedures.
- If replacement sensor does not clear the fault, test or replace EPS/steering control module per factory procedure and reprogram if required.
- Clear codes and road test to confirm repair; recheck for reappearance of C1288 and related codes.
Likely causes
- Corroded/loose connector at steering column or sensor
- Damaged wiring harness (open/short) in steering column area
- Failed steering angle or torque sensor in column
- Clock spring failure causing intermittent signal loss
Fault status
Status
Steering sensor circuit malfunction detected. Control module has observed abnormal sensor voltage, signal or communication. May set steering/EPS or stability warning lights and limit assist.
Repair difficulty: Medium
Diagnostic time: 0.5-2.5 hours
Similar codes
HTML Workshop Manuals AI manual library for HUMMER Click to show available manuals 8
HUMMER 2010 Hummer H3 Alpha
HTML ManualHUMMER 2010 Hummer H3 Base
HTML ManualHUMMER 2010 Hummer H3 Base
HTML ManualHUMMER 2010 Hummer H3 L5-3 3.7L
HTML ManualHUMMER 2010 Hummer H3 V8-5 V8-5.3L
HTML ManualHUMMER 2010 Hummer H3T Alpha
HTML ManualHUMMER 2010 Hummer H3T Base
HTML ManualHUMMER 2010 Hummer H3T Base
HTML ManualYour experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email
Code
C1288
LAND ROVER
C — Chassis
Main / primary input of the pressure transducer - circuit failure
Views:
UK: 5
EN: 16
RU: 14
AI status
Completed
Completed
100%
Causes
- Open or shorted wiring to steering sensor
- Corroded, loose or damaged connector at the steering column or EPS module
- Failed steering angle/torque/position sensor
- Faulty clock spring (spiral cable) or steering wheel connector
- Poor power or ground to the sensor or EPS module
- Water intrusion or corrosion in connector/harness
Symptoms
- Steering assist reduced or lost (hard steering) or inconsistent assist
- Steering column/Service Steering or EPS warning lamp illuminated
- Electronic stability/ABS/TCS warnings or degraded functionality
- Steering angle readout incorrect or stored zero/incorrect offset
- DTC present and may be intermittent depending on vehicle movement or temperature
What to check
- Read DTCs and freeze frame data with a capable scan tool; note related codes and module time stamp
- Check for other related codes (ABS, ESC, U-codes) that may indicate comms issues
- Visually inspect steering column area, connectors, and wiring harness for damage, corrosion, or water intrusion
- Inspect clock spring/spiral cable and steering wheel connectors for wear or damage
- Verify fuses and power/ground to steering sensor and EPS module per wiring diagram
- Backprobe sensor connector and EPS module pins while turning wheel to observe signal behavior
Signal parameters
- Typical sensor circuits use: 5 V reference (or vehicle reference), ground, and one or more signal lines (analog voltage ~0.5–4.5 V) or digital/PWM outputs
- Some systems provide steering angle over CAN bus (message ID and update rate visible on diagnostic tool)
- Signal should be stable at center and change smoothly and linearly as the wheel is turned; watch for dropouts, spikes, or stuck values
- Resistance or continuity from sensor connector to EPS module ground/power pins should be within specification (consult service data)
Diagnostic algorithm
- Connect a scan tool, record current codes, freeze frame and live data for steering angle/torque/sensor outputs and module status.
- Check for related communications codes (U-codes). If comms lost, diagnose network or module power/ground first.
- Visually inspect connectors, wiring harness, clock spring and sensor mounting for damage or corrosion. Repair any obvious physical faults.
- With key on (engine off) backprobe sensor connector: verify reference voltage present, good ground, and sensor output signal at rest. Compare to expected ranges from service data.
- Turn steering wheel slowly while monitoring sensor output for smooth change. Use multimeter or oscilloscope to identify noise, dropouts or erratic signals.
- Perform continuity/resistance checks from sensor connector to EPS module connector to locate opens/shorts. Wiggle harness to reproduce intermittent faults.
- If wiring and connectors test good but signal is out of range or inconsistent, replace the steering sensor (or clock spring if wiring within it is damaged) and perform required calibration/relearn procedures.
- If replacement sensor does not clear the fault, test or replace EPS/steering control module per factory procedure and reprogram if required.
- Clear codes and road test to confirm repair; recheck for reappearance of C1288 and related codes.
Likely causes
- Corroded/loose connector at steering column or sensor
- Damaged wiring harness (open/short) in steering column area
- Failed steering angle or torque sensor in column
- Clock spring failure causing intermittent signal loss
Fault status
Status
Steering sensor circuit malfunction detected. Control module has observed abnormal sensor voltage, signal or communication. May set steering/EPS or stability warning lights and limit assist.
Repair difficulty: Medium
Diagnostic time: 0.5-2.5 hours
Similar codes
HTML Workshop Manuals AI manual library for LAND ROVER Click to show available manuals 39
LAND ROVER 2018 Discovery HSE Luxury, 3.0L Eng VIN K
HTML ManualLAND ROVER 2018 Discovery HSE Luxury, 3.0L Eng VIN V
HTML ManualLAND ROVER 2018 Discovery HSE, 3.0L Eng VIN K
HTML ManualLAND ROVER 2018 Discovery HSE, 3.0L Eng VIN V
HTML ManualLAND ROVER 2018 Discovery Sport HSE
HTML ManualLAND ROVER 2018 Discovery Sport HSE Luxury
HTML ManualLAND ROVER 2018 Discovery Sport SE
HTML ManualLAND ROVER 2018 Range Rover Autobiography
HTML ManualYour experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email
Code
C1288
Other
C — Chassis
Pressure Transducer Main / Primary Input Circuit Failure
Views:
UK: 18
EN: 31
RU: 21
AI status
Completed
Completed
100%
Causes
- Open or shorted wiring to steering sensor
- Corroded, loose or damaged connector at the steering column or EPS module
- Failed steering angle/torque/position sensor
- Faulty clock spring (spiral cable) or steering wheel connector
- Poor power or ground to the sensor or EPS module
- Water intrusion or corrosion in connector/harness
Symptoms
- Steering assist reduced or lost (hard steering) or inconsistent assist
- Steering column/Service Steering or EPS warning lamp illuminated
- Electronic stability/ABS/TCS warnings or degraded functionality
- Steering angle readout incorrect or stored zero/incorrect offset
- DTC present and may be intermittent depending on vehicle movement or temperature
What to check
- Read DTCs and freeze frame data with a capable scan tool; note related codes and module time stamp
- Check for other related codes (ABS, ESC, U-codes) that may indicate comms issues
- Visually inspect steering column area, connectors, and wiring harness for damage, corrosion, or water intrusion
- Inspect clock spring/spiral cable and steering wheel connectors for wear or damage
- Verify fuses and power/ground to steering sensor and EPS module per wiring diagram
- Backprobe sensor connector and EPS module pins while turning wheel to observe signal behavior
Signal parameters
- Typical sensor circuits use: 5 V reference (or vehicle reference), ground, and one or more signal lines (analog voltage ~0.5–4.5 V) or digital/PWM outputs
- Some systems provide steering angle over CAN bus (message ID and update rate visible on diagnostic tool)
- Signal should be stable at center and change smoothly and linearly as the wheel is turned; watch for dropouts, spikes, or stuck values
- Resistance or continuity from sensor connector to EPS module ground/power pins should be within specification (consult service data)
Diagnostic algorithm
- Connect a scan tool, record current codes, freeze frame and live data for steering angle/torque/sensor outputs and module status.
- Check for related communications codes (U-codes). If comms lost, diagnose network or module power/ground first.
- Visually inspect connectors, wiring harness, clock spring and sensor mounting for damage or corrosion. Repair any obvious physical faults.
- With key on (engine off) backprobe sensor connector: verify reference voltage present, good ground, and sensor output signal at rest. Compare to expected ranges from service data.
- Turn steering wheel slowly while monitoring sensor output for smooth change. Use multimeter or oscilloscope to identify noise, dropouts or erratic signals.
- Perform continuity/resistance checks from sensor connector to EPS module connector to locate opens/shorts. Wiggle harness to reproduce intermittent faults.
- If wiring and connectors test good but signal is out of range or inconsistent, replace the steering sensor (or clock spring if wiring within it is damaged) and perform required calibration/relearn procedures.
- If replacement sensor does not clear the fault, test or replace EPS/steering control module per factory procedure and reprogram if required.
- Clear codes and road test to confirm repair; recheck for reappearance of C1288 and related codes.
Likely causes
- Corroded/loose connector at steering column or sensor
- Damaged wiring harness (open/short) in steering column area
- Failed steering angle or torque sensor in column
- Clock spring failure causing intermittent signal loss
Fault status
Status
Steering sensor circuit malfunction detected. Control module has observed abnormal sensor voltage, signal or communication. May set steering/EPS or stability warning lights and limit assist.
Repair difficulty: Medium
Diagnostic time: 0.5-2.5 hours
Similar codes
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email