Diagnostic Aids
| • | 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. |
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 | |
2 |
Does the heated steering wheel indicator turn ON? | -- | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 |
Is battery voltage present on the circuit when the heater is ON? | -- | 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 |
Did you correct the condition? | -- | System OK | Go to Step 3 |
