U1504

U1504-IMPLAUSIBLE MESSAGE DATA LENGTH RECEIVED FROM STEERING ANGLE SENSOR

When Monitored
Continuously with the ignition on.

Set Condition
When the Anti-Lock Brake Module detects an incorrect CAN message from the Steering Angle Sensor.

Possible Causes
- FCM CAN BUS DTCS
- STEERING ANGLE SENSOR
- ANTI-LOCK BRAKE MODULE

Diagnostic Test
1. CHECK IF FCM CAN BUS DTCs ARE PRESENT
With the scan tool, read FCM DTCs.
Are there any FCM CAN BUS DTCs present?
Yes >> Refer to Body Control Systems and diagnose the appropriate symptom.
Perform ABS VERIFICATION TEST - VER 1. ABS Verification Test
No >> Go To 2
2. CHECK IF STEERING ANGLE SENSOR DTCs ARE PRESENT
With the scan tool, read Steering Angle Sensor DTCs.
Are there any STEERING ANGLE SENSOR DTCs present?
Yes >> Diagnose the appropriate symptom.
Perform ABS VERIFICATION TEST - VER 1. ABS Verification Test
No >> Replace the Anti-Lock Brakes Module.
Perform ABS VERIFICATION TEST - VER 1. ABS Verification Test