Refer to "51.Engine Control 1A.Troubleshooting(IBS (4JJ3 with DPD)) diagnostic system check-IBS".
1) Connect the scan tool.
2) Turn OFF the ignition switch for 30 seconds or more.
3) Start the engine.
4) Observe the DTC information with a scan tool. Is a DTC set?
Yes
=>Go to Generator harness connector inspection.
No
Go to Intermittent conditions of IBS.
Refer to "202.Engine 15D.Symptom(IBS (4JJ3 with DPD)) intermittent conditions of IBS".
1) Inspect for poor connections at the generator harness connector (pin 1 of E16). Is the connection status normal?
Refer to "RHD Battery Sensor" in the ETM (wiring diagram). (Open using the ETM viewer.).
Yes
=>Go to Charging system inspection.
No
Repair the connections as necessary.
1) Inspect the charging system. Is the result normal?
Refer to "1.Engine 1J.Electrical(4JJ3 with DPD) generator inspection".
Refer to "202.Engine 15D.Symptom(4JJ3 with DPD) defect of charging system".
Yes
=>Go to Battery sensor harness connector inspection.
No
Repair the charging system.
1) Inspect for poor connections at the battery sensor harness connector (pin 6 of C49). Is the connection status normal?
Refer to "RHD Battery Sensor" in the ETM (wiring diagram). (Open using the ETM viewer.).
Yes
=>Go to Battery sensor replacement.
No
Repair the connections as necessary.
Refer to "1.Engine 1J.Electrical(4JJ3 with DPD) battery sensor removal".
Refer to "1.Engine 1J.Electrical(4JJ3 with DPD) battery sensor installation".
Procedure completion
1) Clear the DTC with a scan tool.
2) Turn OFF the ignition switch for 30 seconds or more.
3) Start and idle the engine.
4) Observe the DTC information with a scan tool.