C1111critical severityChassis
Pump Motor Circuit Malfunction
on 2003 Infiniti FX45 4.5L V8 · AWD
What this code means
The ABS module detected a fault in the hydraulic pump motor circuit. No direct OBD P-code equivalent exists for this manufacturer-specific code.
Symptoms
- ABS warning light on
- No ABS pump operation
- Reduced ABS function
Common causes
- Faulty pump motor
- Damaged motor wiring
- Blown pump fuse or relay
- Failed control unit driver
Diagnostic steps
- Scan for ABS codes
- Check pump motor fuse/relay
- Test motor circuit continuity
- Command pump with scan tool
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Other Chassis codes on this vehicle
C0021
LF Wheel Speed Sensor Range/Performance
C0022
RF Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0025
LF Wheel Speed Sensor Circuit Intermittent
C0026
RF Wheel Speed Sensor Circuit Intermittent
C0027
LR Wheel Speed Sensor Circuit Intermittent
C0028
RR Wheel Speed Sensor Circuit Intermittent
C0035
Left Front Wheel Speed Sensor Circuit
C0036
Left Front Wheel Speed Signal Erratic