Steering Wheel Controls Inoperative 2.8L, 3.6L (LP1/LY7)
Diagnostic Aids
Before diagnosis of the steering wheel controls, ensure the primary controls of the associated component are functioning properly.
Step | Action | Values | Yes | No |
|---|---|---|---|---|
Schematic Reference: Steering Wheel Schematics Connector End View Reference: Entertainment Connector End Views and Steering Wheel and Column Connector End Views | ||||
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | |
2 |
Do all of the steering wheel controls operate properly? | -- | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 | Does the thumb wheel operate properly? | -- | Go to Step 4 | Go to Step 6 |
4 | Do one or more of the steering wheel control switches operate properly? | -- | Go to Step 12 | Go to Step 5 |
5 |
Caution: Refer to SIR Caution in the Preface section.
Is the resistance near the specified range? | 4282 ohms | Go to Step 7 | Go to Step 13 |
6 |
Caution: Refer to SIR Caution in the Preface section.
Is continuity found? | -- | Go to Step 9 | Go to Step 13 |
7 | Test the remote radio control supply voltage circuit for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 15 | Go to Step 8 |
8 | Test the steering wheel control signal circuit for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 15 | Go to Step 11 |
9 | Test the remote radio control supply voltage circuit for an open or short. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 15 | Go to Step 10 |
10 | Test the steering wheel controls signal circuit for an open or short. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 15 | Go to Step 11 |
11 | Inspect for poor connections at the harness connector of the radio. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | -- | Go to Step 15 | Go to Step 14 |
12 | Inspect for poor connections at the harness connector of the steering wheel controls. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | -- | Go to Step 15 | Go to Step 13 |
13 | Replace the steering wheel control. Refer to Steering Wheel Control Switch Assembly Replacement . Did you complete the replacement? | -- | Go to Step 15 | -- |
14 | Replace the radio. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | -- | Go to Step 15 | -- |
15 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
Steering Wheel Controls Inoperative 6.0L (LS2)
Diagnostic Aids
Before diagnosis of the steering wheel controls, ensure the primary controls of the associated component are functioning properly.
Step | Action | Values | Yes | No |
|---|---|---|---|---|
Schematic Reference: Steering Wheel Schematics Connector End View Reference: Steering Wheel and Column Connector End Views and Instrument Panel, Gages, and Console Connector End Views | ||||
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | |
2 |
Do all of the steering wheel controls operate properly? | -- | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 |
Caution: Refer to SIR Caution in the Preface section.
Is the resistance near the specified range? | SW 1 - 715 K ohms SW 2 - 1.895 K ohms SW 3 - 3.165 K ohms SW 4 - 7.485 K ohms | Go to Step 4 | Go to Step 8 |
4 | Test the steering wheel control signal circuit for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 10 | Go to Step 5 |
5 | Test the ground circuit for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 10 | Go to Step 6 |
6 | Inspect for poor connections at the harness connector of the instrument panel cluster (IPC) . Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | -- | Go to Step 10 | Go to Step 9 |
7 | Inspect for poor connections at the harness connector of the steering wheel controls. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | -- | Go to Step 10 | Go to Step 8 |
8 | Replace the steering wheel control. Refer to Steering Wheel Control Switch Assembly Replacement . Did you complete the replacement? | -- | Go to Step 10 | -- |
9 | Replace the IPC. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement? | -- | Go to Step 10 | -- |
10 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | -- |
