Diagnostic Aids
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- If the cruise control indicator works but the heated steering wheel indicator does not, then the problem does not lie with the BCM or with the LED signal circuit.
- The heated steering wheel will remain ON if the heated steering wheel switch is disconnected while the heated steering wheel is ON.
Heated Steering Wheel Indicator Malfunction
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Steering Wheel Schematics Connector End View Reference: Steering Wheel and Column Connector End Views DEFINITION: The heated steering wheel operates OK, but the indicator will not turn ON. |
||||
| 1 | Did you review the Heated Steering Wheel operation and perform the necessary inspections? | - | Go to Step 2 | Go to Steering Wheel and Column Description and Operation |
| 2 |
|
- | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
| 3 |
|
- | Go to Step 4 | Go to Step 5 |
| 4 | Measure the voltage and frequency on the heated steering wheel switch LED signal circuit, with a DMM connected to B+. Refer to Circuit Testing
. Does the DMM measure the specified voltage and frequency, between the LED signal circuit and B+? |
8.0 - 12.6 volts, 130 Hz | Go to Step 7 | Go to Step 6 |
| 5 | Test the heated steering switch LED control circuit for an open. Refer to Circuit Testing
. Did you find and correct the condition? |
- | Go to Step 13 | Go to Step 8 |
| 6 | Test the heated steering switch LED signal circuit for an open or short to voltage. Refer to Circuit Testing
. Did you find and correct the condition? |
- | Go to Step 13 | Go to Step 9 |
| 7 | Inspect for poor connections at the heated steering wheel switch. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
- | Go to Step 13 | Go to Step 10 |
| 8 | Inspect for poor connections at the heated steering wheel control module. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
- | Go to Step 13 | Go to Step 11 |
| 9 | Inspect for poor connections at the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
- | Go to Step 13 | Go to Step 12 |
| 10 | Replace the heated steering wheel switch. Refer to Steering Wheel Control Switch Assembly Replacement
. Did you complete the replacement? |
- | Go to Step 13 | - |
| 11 | Replace the heated steering wheel control module. Refer to Steering Wheel Heat Module Replacement . Did you complete the replacement? |
- | Go to Step 13 | - |
| 12 | Replace the BCM. Refer to Control Module References
for replacement, setup, and programming. Did you complete the replacement? |
- | Go to Step 13 | - |
| 13 |
|
- | System OK | Go to Step 3 |