How to Proceed with Troubleshooting

CRUISE CONTROL: CRUISE CONTROL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use the following procedures to troubleshoot the cruise control system.
* *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

NEXT -- Continue to next step.

3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the CAN communication system is functioning normally.

Result





B -- Go to CAN COMMUNICATION SYSTEM Diagnosis System
A -- Continue to next step.

4. CHECK FOR DTC*

(a) Check for DTCs DTC Check / Clear.

(b) Clear the DTCs DTC Check / Clear.

(c) Recheck for DTCs. Based on the DTCs output in the first step, try to force output of the cruise control system DTCs by simulating the conditions indicated by the DTCs.

Result





B -- Go to DIAGNOSTIC TROUBLE CODE CHART Cruise Control System
A -- Continue to next step.

5. PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table Problem Symptoms Table.

Result





B -- Go to step 7
A -- Continue to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Road Test Road Test

(b) Terminals of ECM Terminals of ECM

(c) Data List / Active Test Data List / Active List

NEXT -- Continue to next step.

7. ADJUST, REPAIR OR REPLACE

NEXT -- Continue to next step.

8. CONFIRMATION TEST

NEXT -- END