Up to 08/2009

CRUISE CONTROL: CRUISE CONTROL SYSTEM: DIAGNOSIS SYSTEM

1. DESCRIPTION

The ECM controls the cruise control system of the vehicle. The data and DTCs relating to the cruise control system can be read from the DLC3 of the vehicle. If either DTC or CRUISE OK is not displayed on the multi-information display on the combination meter when checking for DTCs, there may be a problem with either the combination meter or the CAN communication system. Use the Techstream to check and solve the problem.

HINT
If a vehicle speed sensor, stop light switch or any other related part malfunctions, the ECM cancels cruise control operation automatically.

2. CHECK DLC3

(a) Check the DLC3 General Information.

3. CHECK INDICATOR

(a) Turn the engine switch on (IG).

Text in Illustration









(b) Check that the cruise main indicator light illuminates when the cruise control main switch is turned on, and that the indicator light turns off when the main switch is turned off. If the results are not as specified, inspect the cruise main indicator light circuit Cruise Main Indicator Light Circuit.

HINT
While driving with cruise control on, the ECM activates AUTO CANCEL of the cruise control system when a malfunction occurs in one of the following: vehicle speed sensors, stop light switch, or other related parts. When AUTO CANCEL is activated, the cruise main indicator light outputs the blinking pattern shown in the illustration. At the same time, data of the malfunction is stored as a DTC.