C121A-STEERING ANGLE SENSOR NOT INITIALIZED
For a complete wiring diagram Refer to Section 8W.
Possible Causes
|
TERMINAL/CONNECTOR/WIRING HARNESS DAMAGE
|
(F943) FUSED B(+) CIRCUIT OPEN
|
(Z385) GROUND CIRCUIT OPEN
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STEERING CONTROL MODULE
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Diagnostic Test
1.
CHECK FOR A DTC C121A-STEERING ANGLE SENSOR NOT INITIALIZED
NOTE:
This DTC must be active for the results of this test to be valid.
Turn the ignition on.
With the scan tool, read and record DTCs.
With the scan tool, read and record Freeze Frame information.
With the scan tool, erase DTCs.
Road test the vehicle over 30 km/h (19 mph) for at least 30 seconds.
With the scan tool, read and record DTCs.
Does the scan tool display: C121A-STEERING ANGLE SENSOR NOT INITIALIZED?
Yes
No
2.
CHECK THE TERMINALS/CONNECTORS/WIRING HARNESS FOR DAMAGE
Check the Steering Angle Sensor installation.
Check all related wiring for bruised, chafed, pierced, or partially broken wires.
Check all related connectors for broken, bent, pushed out, or corroded terminals.
Were any problems found?
Yes
No
3.
CHECK THE VOLTAGE ON THE (F943) FUSED B(+) CIRCUIT
Turn the ignition off.
Disconnect the Steering Control Module harness connector.
Turn the ignition on.
Measure the voltage of the (F943) Fused B(+) circuit.
Is the voltage above 10 volts?
Yes
No
4.
CHECK THE RESISTANCE OF THE (Z385) GROUND CIRCUIT
Turn the ignition off.
Disconnect the Steering Control Module harness connector.
Measure the resistance between the (Z385) Ground circuit and ground.
Is the resistance below 5.0 ohms?
Yes
No