DTC P1267 Common Rail Pressure Relief Valve Circuit 1 Low Voltage (4JJ3 without DPD)

1. Engine control system check

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) Diagnostic system check-engine controls".

2. Prioritized DTC check

1) Connect the scan tool.

2) Turn OFF the ignition switch for 1 minute or more.

3) Start the engine.

4) Observe the DTC information with a scan tool. Is DTC P0090 or P009B set at the same time?

Yes

Go to the applicable DTC diagnosis.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P0090 Fuel Pressure Regulator Solenoid Control Circuit Open".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) DTC P009B Common Rail Pressure Relief Valve Drive Circuit".

No

=>Go to Current DTC check.

3. Current DTC check

1) Turn OFF the ignition switch for 1 minute or more.

2) Start the engine.

3) Observe the DTC information with a scan tool. Is a DTC set?

Yes

=>Go to ECM replacement.

No

Go to Intermittent conditions of engine.

Refer to "202.Engine 15D.Symptom(4JJ3 without DPD) intermittent conditions of engine".

4. ECM replacement

Refer to "1.Engine 1Z.Engine Electrical Control(4JJ3 without DPD) ECM removal".

Refer to "1.Engine 1Z.Engine Electrical Control(4JJ3 without DPD) ECM installation".

Refer to "1.Engine 1Z.Engine Electrical Control(4JJ3 without DPD) ECM setting".

Procedure completion

=>Go to Repair verification.

5. Repair verification

1) Clear the DTC with a scan tool.

2) Turn OFF the ignition switch for 1 minute or more.

3) Start the engine.

4) Operate the vehicle under the conditions for running the DTC.

5) Observe the DTC information with a scan tool.