Suspension Control - Computer Command Ride (CCR)

Diagnostic Chart:

Wiring Diagram:

TEST CONDITIONS

The Control Module will monitor the lift/dive signal which is pulled low then high by the PCM.

FAULT CONDITIONS

If the Control Module does not see the low to high transition within 15 seconds after key on it suspects a lift/dive signal error, but waits until the test has failed on the second consecutive ignition cycle to set the error in memory.

ACTION TAKEN

Record lift/dive signal error,
Turn on both driver select switch L.E.D.'s,
The system recovers upon successful completion of the lift/dive signal power on test at the beginning of the next ignition cycle.

DESCRIPTION

Pin C3 of the CCR Control Module is connected to the Powertrain Control Module. The PCM pulls the signal low to indicate a hard acceleration (lift) or deceleration (dive). Upon a transition from a high to a low state, the CCR Control Module shall command the Sport mode and maintain it until a low to high transition is detected.

NOTES ON INTERMITTENTS

Whenever checking lift/dive signal, the ignition must be turned off then on twice for the code to reset.

If the car is put into crank while in gear, the CCR Control Module shuts off, but the PCM doesn't, so the lift/dive handshake is not performed and the code may be set.