Test E: The Autolock Does Not Operate Correctly

PINPOINT TEST E: THE AUTOLOCK DOES NOT OPERATE CORRECTLY

E1-E4:

E4-E8:

Normal Operation
The smart junction box (SJB) energizes the lock relay based on input from the ajar switches, the ignition switch, the transmission range (TR) sensor and the vehicle speed sensor (VSS). The SJB locks the doors when the following conditions are met:
- all the doors are closed
- the ignition switch is in the ON position
- the vehicle is shifted into any gear putting the vehicle in motion, and
- the vehicle attains a speed greater than 20 km/h (12 mph) for longer than 2 seconds.

DTC U0155 Lost Communication With Instrument Panel Cluster (IC) Control Module - is a continuous DTC that sets if the SJB does not receive vehicle speed status from the instrument cluster for longer than 5 minutes with the ignition switch in the ON position.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals and connectors
- Programming
- Door ajar switches
- Instrument cluster
- SJB