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
- INSPECT BATTERY VOLTAGE
- Measure the battery voltage with the ignition switch off.
Standard Voltage
11 to 14 V
If the voltage is below 11 V, replace or recharge the battery before proceeding to the next step.
Result
Proceed to NEXT
Result:
NEXT
See step 3
- Measure the battery voltage with the ignition switch off.
- CHECK COMMUNICATION FUNCTION OF CONTROLLER AREA NETWORK (CAN)*
- Use the Techstream to check if the CAN communication system is functioning normally.
Result
Result Proceed to CAN DTC is not output A CAN DTC is output B
Result:
B
GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2016 - 03/2017] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - ]
Result:
A
See step 4
- Use the Techstream to check if the CAN communication system is functioning normally.
- CHECK FOR DTC*
Refer to DTC Check / Clear.
Refer to DTC CHECK / CLEAR [06/2016 - ]
- Check for DTCs and note any codes that are output.
- Clear the DTCs.
- Recheck for DTCs. Try to reproduce the DTCs by duplicating the conditions indicated by the DTCs.
Result
Result Proceed to DTC does not reoccur A DTC reoccurs B
Result:
B
GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [06/2016 - ]
Result:
A
See step 5
- ROAD TEST
- Perform the road test.
Refer to ROAD TEST [06/2016 - ]
- Check that cruise control is not canceled by other than canceling operations by the driver.
Result
Result Proceed to Cruise control is cancelled A Cruise control is not cancelled B
Result:
B
See step 8
Result:
A
See step 6
- Perform the road test.
- CHECK "CANCEL CODE"*
HINT:
The driver's history of canceling cruise control is also stored.
- Check "CANCEL CODE".
Refer to CANCEL CODE [06/2016 - ]
Result
Result Proceed to "CANCEL CODE" is not detected A "CANCEL CODE" is detected B
Result:
B
ADJUST, REPAIR OR REPLACE ACCORDING TO "CANCEL CODE"
Result:
A
See step 7
- Check "CANCEL CODE".
- PROBLEM SYMPTOMS TABLE
Refer to Problem Symptoms Table.
Refer to PROBLEM SYMPTOMS TABLE [06/2016 - ]
Result
Result Proceed to Fault is not listed in Problem Symptoms Table A Fault is listed in Problem Symptoms Table B Result:
B
ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE
Result:
A
See step 8
- OVERALL ANALYSIS AND TROUBLESHOOTING*
- Terminals of ECU
Refer to TERMINALS OF ECM [06/2016 - ]
- Data List / Active Test
Refer to DATA LIST / ACTIVE TEST [06/2016 - ]
Result
Proceed to NEXT
Result:
NEXT
See step 9
- Terminals of ECU
- ADJUST, REPAIR OR REPLACE
Result
Proceed to NEXT Result:
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.
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