Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
How To Proceed With Troubleshooting [06/2016 - ]: Procedure
- VEHICLE BROUGHT TO WORKSHOP
Result
Proceed to NEXT Result:
NEXT
See step 2
- CUSTOMER PROBLEM ANALYSIS
- Interview the customer and confirm the trouble.
Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2016 - 03/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - ]
Result
Proceed to NEXT
Result:
NEXT
See step 3
- Interview the customer and confirm the trouble.
- CHECK DTC AND FREEZE FRAME DATA*
- Check and record DTCs and Freeze Frame Data.
- Clear the DTCs and Freeze Frame Data (Refer to DTC CHECK / CLEAR [06/2016 - ] for DTC Check/Clear. Refer to FREEZE FRAME DATA [06/2016 - ] and for Freeze Frame Data).
- Reconfirm the DTCs.
- Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data (Refer to DTC CHECK / CLEAR [06/2016 - ] for DTC Check/Clear, and Refer to FREEZE FRAME DATA [06/2016 - ] for Freeze Frame Data).
HINT:
- When DTCs indicating CAN communication system malfunctions are output, repair the CAN communication system first.
Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2016 - 03/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - ]
- If the Techstream cannot communicate with the skid control ECU, inspect the CAN communication system.
Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2016 - 03/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - ]
- If there is no response from the skid control ECU, inspect the power source circuit of the skid control ECU.
Refer to DTC C1241: Low or High Power Supply Voltage [06/2016 - ]
- When DTCs indicating CAN communication system malfunctions are output, repair the CAN communication system first.
Result
Result Proceed to DTC is output. A DTC is not output. (Problem symptom does not occur.) B DTC is not output. (Problem symptom occurs.) C - Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data (Refer to DTC CHECK / CLEAR [06/2016 - ] for DTC Check/Clear, and Refer to FREEZE FRAME DATA [06/2016 - ] for Freeze Frame Data).
Result:
B
See step 5
Result:
C
See step 6
Result:
A
See step 4
- DIAGNOSTIC TROUBLE CODE CHART
- Proceed to Diagnostic Trouble Code Chart.
Refer to DIAGNOSTIC TROUBLE CODE CHART [06/2016 - ]
Result
Proceed to NEXT
Result:
NEXT
See step 7
- Proceed to Diagnostic Trouble Code Chart.
- SYMPTOM SIMULATION
- Proceed to How to Proceed with Troubleshooting.
Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2016 - 03/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - ]
Result
Proceed to NEXT
Result:
NEXT
See step 6
- Proceed to How to Proceed with Troubleshooting.
- PROBLEM SYMPTOMS TABLE
- Proceed to Problem Symptoms Table.
Refer to PROBLEM SYMPTOMS TABLE [06/2016 - ]
Result
Proceed to NEXT
Result:
NEXT
See step 7
- Proceed to Problem Symptoms Table.
- CIRCUIT INSPECTION*
Result
Proceed to NEXT Result:
NEXT
See step 8
- IDENTIFICATION OF PROBLEM
Result
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NEXT
See step 9
- REPAIR OR REPLACEMENT
Result
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NEXT
See step 10
- CONFIRMATION TEST*
Result
Proceed to NEXT Result:
NEXT
END
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.