Express 3/4 Ton Van V8-4.8L VIN V (2003)
ABS Light: Description and Operation
ABS Indicator
The IPC illuminates the ABS indicator when tire following occurs.
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The Electronic Brake Control Module (EBCM) detects an ABS-disabling malfunction and sends a serial data message to the IPC requesting
illumination.
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The IPC performs the bulb check.
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The IPC detects a loss of serial data communication with the EBCM.
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A DTC is set during the previous ignition cycle which requires an ECE 13 response at the beginning of the current ignition cycle. The EBCM
sends a serial data message to the IPC requesting illumination.
