Diesel Data: Automotive Repair

P0703




DTC P0703

DTC Detecting Condition and Trouble Area






DTC Confirmation Procedure

WARNING:

If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur.

- Select a level road with no traffic to minimize the risk of accident.
- Perform the test extremely carefully.
- Perform the road test using 2 persons, a driver and an assistant.

NOTE:

If other DTC than P0703 is newly detected during this "DTC Confirmation Procedure", troubleshoot the newly detected DTC in first.

1) Drive vehicle at more than 40 km/h (25 mile/h) for 20 sec.
2) Stop vehicle.
3) Push engine switch to change ignition mode to "OFF", and leave ignition mode in "OFF" for 10 sec.
4) Push engine switch to change ignition mode to "ON".
5) Repeat Step 1) through 2) twice.

DTC Troubleshooting

1.
Was "CVT System Check" performed?
YES -
Go to Step 2.
NO -
Go to CVT System Check CVT System Check.

2. DTC check

Check DTC related to CAN communication.

Is there any CAN-DTC(s) detected?
YES -
Go to troubleshooting for applicable DTC.
NO -
Go to Step 3.

3. DTC check of ECM

Check DTC of ECM. DTC Check

Is there any DTC(s)?
YES -
Go to troubleshooting for applicable DTC.
NO -
Go to Step 4.

4. Brake light switch check

Check brake light switch. Brake Light Switch Inspection

Is it in good condition?
YES -
Substitute a known-good TCM and recheck DTC. Service and Repair
NO -
Replace brake light switch. Brake Light Switch Removal and Installation