How To Proceed With Troubleshooting

CRUISE CONTROL: DYNAMIC LASER CRUISE CONTROL SYSTEM:

HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
- Use these procedures to troubleshoot the dynamic laser cruise control system.
- The Techstream should be used at steps 3, 4, 5, and 9.

1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. INSPECT BATTERY VOLTAGE
Standard:
11 to 14 V
If the voltage is below 11 V, replace or recharge the battery before proceeding.
NEXT -- Continue to next step.
3. CHECK COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)
(a) Use the Techstream to check if the Multiplex Communication System (MPX) is functioning normally.
Result:






B -- Go to MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.
4. CHECK COMMUNICATION FUNCTION OF CONTROLLER AREA NETWORK (CAN)
(a) Use the Techstream to check for normal function of CAN communication system.
(1) Perform bus check (communication malfunction DTC).
(2) Perform bus check (communication bus check).
Result:






B -- Go to CAN COMMUNICATION SYSTEM
A -- Continue to next step.
5. CHECK FOR DTC
Refer to the DTC check/clear Dynamic Laser Cruise Control System.
(a) Check for DTC and note any codes that are output.
(b) Delete the DTC.
(c) Recheck for DTC. Try to prompt the DTC by simulating the original activity that the DTC suggests.
Result:






B -- Go to step 8
A -- Continue to next step.
6. PROBLEM SYMPTOMS TABLE
Refer to the problem symptoms table Dynamic Laser Cruise Control System.
Result:






B -- Go to step 8
A -- Continue to next step.
7. OVERALL ANALYSIS AND TROUBLESHOOTING
(a) Terminal of ECU Dynamic Laser Cruise Control System

(b) Data List/Active Test Dynamic Laser Cruise Control System

NEXT -- Continue to next step.
8. REPAIR OR REPLACE
NEXT -- Continue to next step.
9. CONFIRMATION TEST
NEXT -- END