How To Proceed With Troubleshooting [03/2017 - ]: Procedure
WARNING: This page is about a different car, the 2018 Toyota Yaris and 2017 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.
- VEHICLE BROUGHT TO WORKSHOP
Result:
NEXT
See step 2
- CUSTOMER PROBLEM ANALYSIS
- Ask the customer about the problems and the conditions at the time the malfunction occurred to make sure the problem symptom was not temporarily caused by radio waves in the surrounding environment.
HINT:
The rear view monitor display may be temporarily distorted due to radio waves around the vehicle.
Problem Symptom Cause Both of the following conditions are met: - The problem symptom indicates a rear view monitor display malfunction and the problem symptom cannot be reproduced.
- DTC C1622 is output as "Hist" only.*
The display may be temporarily distorted when the vehicle is close to an object that transmits radio waves, such as a telecommunication tower, an airport or a truck equipped with a transceiver. - *: DTCs output as "Hist" will not be output again after DTCs are cleared.
Result:
NEXT
See step 3
- Ask the customer about the problems and the conditions at the time the malfunction occurred to make sure the problem symptom was not temporarily caused by radio waves in the surrounding environment.
- INSPECT BATTERY VOLTAGE
- Measure the battery voltage.
Standard Voltage
11 to 14 V
HINT:
If the voltage is below 11 V, replace or recharge the battery before proceeding to the next step.
Result:
NEXT
See step 4
- Measure the battery voltage.
- CHECK DTC
- Check for DTCs and note any codes that are output.
Refer to DTC CHECK / CLEAR [03/2017 - ]
- Clear the DTCs.
Refer to DTC CHECK / CLEAR [03/2017 - ]
- Recheck for DTCs.
Result
Result Proceed to DTC is not output A DTC is output B
Result:
B
GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [03/2017 - ]
Result:
A
See step 5
- Check for DTCs and note any codes that are output.
- PROBLEM SYMPTOM CONFIRMATION
Result:
NEXT
See step 6
- PROBLEM SYMPTOMS TABLE
- Refer to Problem Symptoms Table.
Refer to PROBLEM SYMPTOMS TABLE [03/2017 - ]
Result
Result Proceed to Fault is not listed in Problem Symptoms Table A Fault is listed in Problem Symptoms Table B
Result:
B
See step 8
Result:
A
See step 7
- Refer to Problem Symptoms Table.
- BASED ON PROBLEM SYMPTOM, PERFORM TROUBLESHOOTING BELOW
- Terminals of ECU.
Refer to TERMINALS OF ECU [03/2017 - ]
Result:
NEXT
See step 8
- Terminals of ECU.
- ADJUST, REPAIR OR REPLACE
Result:
NEXT
See step 9
- CONFIRMATION TEST
Result:
NEXT
END