Refer to "51.Engine Control 1A.Troubleshooting(IBS (RZ4E-TC)) diagnostic system check-IBS".
1) Connect the scan tool.
2) Turn OFF the ignition switch for 30 seconds or more.
3) Turn ON the ignition switch.
4) Observe the DTC information with a scan tool. Is a DTC set?
Yes
Go to the applicable DTC diagnosis.
No
=>Go to Battery sensor inspection.
1) Turn OFF the ignition switch.
2) Disconnect the battery sensor harness connector (C49).
Refer to "LHD Battery Sensor" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD Battery Sensor" in the ETM (wiring diagram). (Open using the ETM viewer.).
3) Turn ON the ignition switch. Does the generator warning light illuminate?
Yes
Replace the instrument panel cluster.
Note
Refer to "9.Body, Cab, Accessories 9E.Instrumentation, Driver Info. instrument panel cluster removal".
Refer to "9.Body, Cab, Accessories 9E.Instrumentation, Driver Info. instrument panel cluster installation".
Refer to "9.Body, Cab, Accessories 9E.Instrumentation, Driver Info. instrument panel cluster setting".
No
=>Go to Battery sensor replacement.
Refer to "1.Engine 1J.Electrical(RZ4E-TC) battery sensor removal".
Refer to "1.Engine 1J.Electrical(RZ4E-TC) battery sensor installation".
Procedure completion
1) Turn ON the ignition switch.
2) Confirm that the generator warning light turns ON.
3) Start the engine.
4) Check the generator warning light. Does the generator warning light turn OFF?
Yes
Go to Diagnostic system check-IBS.
Refer to "51.Engine Control 1A.Troubleshooting(IBS (RZ4E-TC)) diagnostic system check-IBS".
No