Symptom:
STEERING ANGLE SENSOR IMPLAUSIBLE CAN SIGNAL
POSSIBLE CAUSES
STEERING ANGLE SENSOR INTERMITTENT DTC
STEERING ANGLE SENSOR CAN CIRCUIT OPEN
STEERING ANGLE SENSOR
ANTI-LOCK BRAKE CONTROLLER
TEST
ACTION
APPLICABILITY
1
NOTE: If a system undervoltage or overvoltage DTC is set along with this
DTC, diagnose the system voltage DTC first.
NOTE: Electromagnetic (radio) interference can cause an intermittent
system malfunction by interrupting communication between the sensor
and the CAB.
NOTE: The Steering Angle Sensor is very sensitive to changes due to
alignment problems. The sensor must be recalculated using the DRBIII
t if
alignment has been changed by more than 5 degrees.
Turn the ignition on.
With the DRBIII
t, erase DTCs.
Test drive the vehicle.
Using the DRBIII
t, perform the road test procedure.
With the DRBIII
t, read DTCs.
NOTE: If the ESP lamp remains illuminated after the test has completed, a
fault code will be set indicating the cause of the failure.
Does this DTC reset?
All
Yes
→ Go To 2
No
→ Go To 4
2
Turn the ignition off.
Disconnect the Steering Angle Sensor harness connector.
Disconnect the CAB harness connector.
Measure the resistance of the Steering Angle Sensor CAN(+) circuit.
Measure the resistance of the Steering Angle Sensor CAN(-) circuit.
Is the resistance above 5.0 ohms for either circuit?
All
Yes
→ Repair the Steering Angle Sensor CAN circuit for an open.
No
→ Go To 3
68
BRAKES (CAB)