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 to the next step.

NEXT -- Continue to next step.

3. CHECK CAN COMMUNICATION SYSTEM*

(a) Check for output DTCs.

Result:





HINT
The hybrid vehicle control ECU of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure that there is no trouble in the CAN communication system.

B -- PROCEED TO "CAN COMMUNICATION SYSTEM" CAN Communication System (w/ Smart Key System)

C -- PROCEED TO "CAN COMMUNICATION SYSTEM" CAN Communication System (w/o Smart Key System)
A -- Continue to next step.

4. CHECK INDICATOR LIGHT

NEXT -- Continue to next step.

5. CHECK DTC*

(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

(b) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(c) Recheck for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result:





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

6. PROBLEM SYMPTOMS TABLE

(a) Refer to problem symptoms table Symptom Related Diagnostic Procedures.

Result:





B -- GO TO STEP 8
A -- Continue to next step.

7. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU Pinout Values and Diagnostic Parameters.

(b) Data List / Active Test Scan Tool Testing and Procedures.

NEXT -- Continue to next step.

8. REPAIR OR REPLACE

NEXT -- Continue to next step.

9. CONFIRMATION TEST

NEXT -- END