Steering Wheel Controls Inoperative 2.6L/3.2L/3.6L (LY9/LA3/LY7)
Step | Action | Values | Yes | No |
|---|---|---|---|---|
Schematic Reference: Steering Wheel Controls Schematics Connector End View Reference: Entertainment Connector End Views | ||||
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 |
Do all of the steering wheel controls operate properly? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | 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 12 |
6 |
Caution: Refer to SIR Caution in the Preface section. Is continuity found? | -- | Go to Step 9 | Go to Step 12 |
7 | Test the remote radio control supply voltage circuit for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. 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 in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 15 | Go to Step 11 |
9 | Test the information up switch signal circuit for an open or short. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 15 | Go to Step 10 |
10 | Test the information down switch signal circuit for an open or short. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. 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 in Wiring Systems. 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 in Wiring Systems. 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 in Steering Wheel and Column. Did you complete the replacement? | -- | Go to Step 15 | -- |
14 | Replace the radio. Refer to Control Module References in Computer/Integrating Systems. 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 5.7L (LS6)
Step | Action | Values | Yes | No | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information | ||||||||
2 |
Do all of the steering wheel controls operate properly? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | ||||||||
3 |
Caution: Refer to SIR Caution in the Preface section.
Is the resistance near the specified value? | 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 5 | Go to Step 4 | ||||||||
4 | Test steering wheel controls signal for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 9 | Go to Step 6 | ||||||||
5 | 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 in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 9 | Go to Step 8 | ||||||||
6 | 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 in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 9 | Go to Step 7 | ||||||||
7 | Replace the steering wheel controls. Refer to Steering Wheel Control Switch Assembly Replacement in Steering Wheel and Column. Did you complete the replacement? | -- | Go to Step 9 | -- | ||||||||
8 | Replace the IPC. Refer to Control Module References in Computer/Integrating Systems. Did you complete the replacement? | -- | Go to Step 9 | -- | ||||||||
9 | Operate the system to verify the repair. Did you correct the condition? | -- | System OK | -- |
