The rear wheel steering control module controls the ground circuit of each mode indicator lamp individually. The lamps all share a single common input from the interior lights dimming circuit.
Inspect all connections at the rear wheel steering control module and the rear wheel steering mode select switch for loose or damaged terminals or damaged wiring. Use of the Rear Wheel Steering Diagnostic System Check will help ensure there are not other conditions or DTCs.
The numbers below refer to the step numbers in the diagnostic table.
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Rear Wheel Steering Schematics Connector End View Reference: Rear Wheel Steering Connector End Views in Rear Wheel Steering | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
Are all other lighting systems operating properly? | Go to Step 3 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information | |
Do the indicators turn on/off as expected? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 4 | |
4 |
Is a ground signal present? | Go to Step 5 | Go to Step 6 |
5 | Test the affected indicator control circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 7 |
6 | Inspect for poor connections at the harness connector of the Rear Wheel Steering Mode Select switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 8 |
7 | Inspect for poor connections at the harness connector of the rear wheel steering control module. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 9 |
8 | Replace the rear wheel steering mode select switch. Refer to Rear Wheel Steering Mode Switch Replacement . Did you complete the replacement? | Go to Step 10 | -- |
9 | Replace the rear wheel steering control module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 10 | -- |
10 |
Did you correct the condition? | System OK | Go to Step 3 |