Stability System Caution Indicator Always On
Stability System Caution Indicator Always On
Circuit Description
The electronic brake control module (EBCM) turns ON the vehicle stability control (VSC) indicator by closing the VSC indicator control circuit. The Antilock Brake System (ABS) indicator is connected to the GAUGE fuse. This circuit has power when the ignition switch is in the ON or START positions. When the ignition switch is turned to the ON position, the EBCM turns ON the VSC indicator for 3 seconds for a bulb check. If the EBCM detects a malfunction, the VSC indicator will stay ON to warn the driver that the VSC is disabled and needs service.
Diagnostic Aids
Thoroughly inspect the wiring and the connectors. An incomplete inspection of the wiring and the connectors may result in a misdiagnosis, causing a part replacement with the reappearance of the malfunction.
The following are possible causes of the malfunction:
* A short in the VSC indicator control circuit
* An open, high resistance, or short in the ignition positive voltage circuit
* An open or high resistance in the EBCM ground circuits
* An internal EBCM malfunction
If an intermittent malfunction exists, refer to Testing for Intermittent Conditions and Poor Connections. Component Tests and General Diagnostics
Test Description
The numbers below refer to the step numbers on the diagnostic table.
4. This step tests the ignition positive voltage circuit for an open or short to ground.
This step tests the EBCM ground circuits for an open or high resistance.
6. This step tests the VSC indicator control circuit for a short
