Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Infiniti QX56 AWDFACTORY OEM SERVICE PROCEDURE
Brake Control System
- Precautions
- Preparation
- System Description
- Can Communication
- Trouble Diagnosis
- Trouble Diagnosis For Self-Diagnostic Items
- DTC Index
- DTC C1101, C1102, C1103, C1104, C1105, C1106, C1107, C1108: Wheel Sensor System Inspection
- DTC C1130, C1131, C1132, C1133, C1136: Engine System Inspection
- DTC C1110, C1170: ABS/TCS/VDC Control Unit Inspection
- DTC C1143, C1156: Steering Angle Sensor System
- DTC C1113, C1145, C1146: Yaw Rate/Side/Decel G Sensor System Inspection
- DTC C1120, C1121, C1122, C1123, C1124, C1125, C1126, C1127, C1164, C1165, C1166, C1167: Solenoid and VDC Change-Over Valve System Inspection
- DTC C1111, C1140, C1184, C1185: Actuator Motor, Motor Relay, and Circuit Inspection
- DTC C1116: Stop Lamp Switch System Inspection
- DTC C1109: ABS/TCS/VDC Control Unit Power and Ground Systems Inspection
- DTC C1155: Brake Fluid Level Sensor System Inspection
- DTC C1178, C1181, C1189: Active Booster System Inspection
- DTC C1179: Delta Stroke Sensor System Inspection
- DTC 1142: Pressure Sensor System Inspection
- DTC U1000: CAN Communication System Inspection
- DTC C1144: Inspection For Self-diagnosis Result "ST ANG SIGNAL"
- DTC C1160: Inspection For Self-diagnosis Result "DECEL G SEN SET"
- Trouble Diagnoses For Symptoms
- ABS Works Frequently
- Unexpected Pedal Action
- Long Stopping Distance
- ABS Does Not Work
- Pedal Vibration or ABS Operation Noise
- ABS Warning Lamp Does Not Come On When Ignition Switch Is Turned On
- ABS Warning Lamp Stays On When Ignition Switch Is Turned On
- VDC OFF Indicator lamp Does Not Illuminate
- Vehicle Jerks During TCS/VDC Activation
- On-Vehicle Service
- Wheel Sensors
- Sensor Rotor
- Actuator And Electric Unit (Assembly)
- Steering Angle Sensor
- G Sensor
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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