Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) Diagnostic system check-engine controls".
1) Connect the scan tool.
2) Turn OFF the ignition switch for 1 minute or more.
3) Turn ON the ignition switch.
4) Observe the DTC information with a scan tool. Is a DTC set?
Yes
=>Go to Wireless access module system inspection.
No
=>Go to Immobilizer-related DTC check.
1) Referring to the following, inspect the wireless access module system. Is the result normal?
Yes
Go to Intermittent conditions of engine.
Refer to "202.Engine 15D.Symptom(4JJ3 with DPD) intermittent conditions of engine".
No
Repair or replace as necessary.
1) Observe the immobilizer-related DTC with a scan tool. Is an immobilizer-related DTC that starts with B set?
Yes
Go to the applicable DTC diagnosis.
No
=>Go to Immobilizer function check.
1) Reprogram the immobilizer function into the ECM.
Refer to "1.Engine 1Z.Engine Electrical Control(4JJ3 with DPD) ECM setting".
Procedure completion
=>Go to Programming verification.
1) Connect the scan tool.
2) Turn OFF the ignition switch for 1 minute or more.
3) Turn ON the ignition switch.
4) Observe the DTC information with a scan tool. Is a DTC set?
Yes
No
Note
Refer to "1.Engine 1Z.Engine Electrical Control(4JJ3 with DPD) ECM removal".
Refer to "1.Engine 1Z.Engine Electrical Control(4JJ3 with DPD) ECM installation".
Refer to "1.Engine 1Z.Engine Electrical Control(4JJ3 with DPD) ECM setting".
Procedure completion
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.