Test Description

WARNING: This page is about a different car, the 2002 Pontiac Grand Am, 2002 Oldsmobile Alero, 2002 Chevrolet Monte Carlo, and 2002 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers in the diagnostic procedures.

2

This step ensures that the EBCM/EBTCM is capable of transmitting the serial data on the class 2 serial data circuit.

4

This step tests the class 2 serial data circuit at the EBCM/EBTCM for correct voltage.