Diagnosis System

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. 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 ignition switch to ON.

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(b) Check that the cruise control indicator light illuminates in green when the cruise control system is turned on using the cruise control switch (ON-OFF button), and that the indicator light turns off when the cruise control system is turned off using the cruise control switch (ON-OFF button). If the results are not as specified, perform the Cruise Main Indicator Light Circuit inspection procedure Cruise Main Indicator Light Circuit.

HINT
While driving with the cruise control system controlling vehicle speed, the ECM will automatically cancel cruise control system control of vehicle speed when a malfunction occurs in one of the following: vehicle speed sensors, stop light switch assembly, or other related parts. When control of vehicle speed by the cruise control system is automatically canceled, the cruise control indicator changes to amber (w/o Multi-information Display) or the cruise control indicator light goes out and a warning message is displayed (w/ Multi-information Display). At the same time, a DTC is stored.