Cruise Control

Fault messages for speed control system diagnostics and their definitions are listed below.

NO VEHICLE SPEED SIGNAL
No distance sensor signal is detected during road load conditions.

SPEED CONTROL POWER RELAY CIRCUIT
An open or shorted condition is detected in the speed control power relay.

SPEED CONTROL SOLENOID CIRCUITS
An open or shorted condition is detected in the speed control vacuum or vent solenoid circuits.


Start Counter
The start counter counts the number of times the vehicle has been started since faults were last set, erased, or the battery was disconnected. The counter will count up to 255 starts. When there are no faults stored in memory, the DRBII will display "NO FAULTS DETECTED" and the counter will show "0 FAULTS SINCE ERS".

Using the DRBII, read faults to determine if the fault is the third fault or less. If it is, a start counter of "0" (zero) equals a hard fault. Any other fault is classified as an intermittent fault (except some faults with long mature times, such as "Engine is Cold Too Long").