Steering Column

P0563-BATTERY VOLTAGE HIGH

For a complete wiring diagram Consult Diagrams/Electrical

- When Monitored:
Continuously.

- Set Condition:
If the voltage to the Steering Control Module (SCM) is above 16 volts for more than one minute.





Diagnostic Test

1. RELATED DTC(S) PRESENT IN THE PCM
Ignition on, engine not running.
With the scan tool, select View DTCs in the Powertrain Control Module.
Are there any charging system or related battery voltage DTCs present in the PCM?

Yes

- Diagnose and repair the DTC(s).

No

- Go to 2

2. DTC IS ACTIVE
Start the engine. Allow the engine to idle for 2 minutes.
With the scan tool, select View DTCs in the Steering Control Module.
Is the DTC status Active at this time?

Yes

- Go to 3

No

- The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests.

3. (A913) FUSED B(+) CIRCUIT HIGH RESISTANCE
Turn the ignition off.
Remove the Steering Control Module.
Start the engine. Allow the engine to idle.
Using a 12-volt test light connected to ground, check the (A913) Fused B(+) circuit in the Steering Control Module harness connector.

NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

Does the test light illuminate brightly?

Yes

- Go to 4

No

- Repair the (A913) Fused B(+) circuit.
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests.

4. (Z910) GROUND CIRCUIT HIGH RESISTANCE
Using a 12-volt test light connected to 12-volts, check the (Z910) Ground circuit in the Steering Control Module harness connector.

NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

Does the test light illuminate brightly?

Yes

- Replace the Steering Control Module (SCM).

No

- Repair the (Z910) Ground circuit.
- Perform BODY VERIFICATION TEST - VER 1. Verification Tests.