How To Proceed With Troubleshooting
HYBRID BATTERY CONTROL: HYBRID BATTERY SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING
HINT
The Techstream should be used in steps 3, 4, 5, and 10.
1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. CUSTOMER PROBLEM ANALYSIS
NEXT -- Continue to next step.
3. CONNECT TECHSTREAM TO THE DLC3*
HINT
If the display on the tester indicates a communication fault, inspect the DLC3.
NEXT -- Continue to next step.
4. CHECK DTC AND FREEZE FRAME DATA* Hybrid Battery System, Freeze Frame Data
HINT
Record or print DTCs and freeze frame data if necessary.
NEXT -- Continue to next step.
5. CLEAR DTC AND FREEZE FRAME DATA* Hybrid Battery System
NEXT -- Continue to next step.
6. CONDUCT VISUAL INSPECTION
NEXT -- Continue to next step.
7. CONFIRM PROBLEM SYMPTOMS
HINT
If the engine does not start, perform steps 9 and 11 first.
Result:
B -- GO TO STEP 10
A -- Continue to next step.
8. DUPLICATE CONDITIONS THAT PRODUCE SYMPTOMS
NEXT -- Continue to next step.
9. CHECK FOR DTCS* Hybrid Battery System
Result:
B -- GO TO STEP 11
A -- Continue to next step.
10. REFER TO DTC CHART
HINT
DTCs for the hybrid control system and hybrid battery system are displayed using the same menus on the Techstream. It is necessary to check the DTC charts for hybrid control system and hybrid battery system.
* Hybrid Control System - DTC chart Hybrid Vehicle Control System - L110
* Hybrid Battery System - DTC chart Hybrid Battery System
NEXT -- GO TO STEP 13
11. CONDUCT BASIC INSPECTION
Result:
B -- GO TO STEP 15
A -- Continue to next step.
12. CHECK ECU POWER SOURCE CIRCUIT
NEXT -- Continue to next step.
13. CONDUCT CIRCUIT INSPECTION
Result:
B -- GO TO STEP 16
A -- Continue to next step.
14. CHECK FOR INTERMITTENT PROBLEMS Hybrid Battery System
NEXT -- GO TO STEP 16
15. CONDUCT PARTS INSPECTION
NEXT -- Continue to next step.
16. IDENTIFY PROBLEM
NEXT -- Continue to next step.
17. ADJUST AND/OR REPAIR
NEXT -- Continue to next step.
18. CONDUCT CONFIRMATION TEST
NEXT -- END