I032

Diagnostic Chart:

Wiring Diagram:

CIRCUIT DESCRIPTION

Code I032 will set if the ignition is on and the IPC is not able to exchange data with the Electronic Brake and Traction Control Module (EBTCM) (if any other communication codes are stored along with I032, see the chart on Multiple Intermittent Codes). When this is the only communication code stored, the problem must be one of the following:

^ An open in CKT 800 between the EBTCM and the Sensing and Diagnostic Module (SDM), and a second open between Road Sensing Suspension (RSS) module and EBTCM.

^ An open or short in the EBTCM power or ground circuits.

^ A faulty EBTCM.

During the time the failure is present, no EBTCM diagnostic information will be available for display. The red brake telltale will be illuminated on the IPC and the Antilock Disabled and Traction Disabled messages will be displayed on the DIC. Also, while in the service diagnostic mode, this code will remain active, always checking for proper operation.

TEST DESCRIPTION

Test numbers refer to circled numbers on the diagnostic chart.

1. If multiple codes are present, a data line fault is indicated and should be diagnosed using the multiple communication code chart.

2. This step checks for an open on the 800 circuit to the EBTCM. Normal voltage should be fluctuating between 0.1 and 5 volts.

3. If the fault is not the 800 circuit, the problem is due to a power or ground failure in the EBTCM or a faulty EBTCM.

NOTES ON INTERMITTENTS

If Code I032 shows as "HISTORY" without any other codes, then check the ignition feed, ground, and data circuits for intermittent faults. If other data codes are stored, see "Multiple Data Communication Codes". Multiple Data Communication Codes