Circuit Description
The Traction Ready indicator is located on the traction control switch and is controlled by the instrument panel cluster (IPC) via serial data messages from the electronic brake control module (EBCM). The indicator is illuminated when the traction control system (TCS) is ready to be activated, if necessary. When the EBCM disables the TCS, it sends a serial data message to the IPC. The IPC then turns OFF the Traction Ready indicator. Each time the ignition is cycled from OFF to ON, the TCS is enabled.
Step | Action | Values | Yes | No | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Antilock Brake System Schematics Connector End View Reference: Antilock Brake System Connector End Views or Instrument Panel, Gages, and Console 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 |
Does the voltage measure near the specified value? | B+ | Go to Step 5 | Go to Step 3 | ||||||
3 | Test the ground circuit of the traction control switch for 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 4 | ||||||
4 | Test the Traction Ready indicator control circuit of the traction control switch for the following conditions:
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 traction control switch. 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 | ||||||
6 | Inspect for poor connections at the harness connector of the instrument 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 | ||||||
7 | Replace the traction control switch. Refer to Electronic Traction Control Switch Replacement . Did you complete the repair? | -- | Go to Step 9 | -- | ||||||
8 | Replace the IPC. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the repair? | -- | Go to Step 9 | -- | ||||||
9 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 | ||||||
