Generator Signal Circuit: Procedure
WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
- READ VALUE USING TECHSTREAM
- Connect the Techstream to the DLC3.
- Turn the ignition switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Body No. 5 / Data List.
- Read the display on the Techstream.BODY NO. 5 (FRONT CONTROLLER)
Tester Display Measurement Item/Range Normal Condition Diagnostic Note Alt L Signal Alternator L terminal signal / ON or OFF ON: Engine start
OFF: Except engine start- OK
Normal conditions listed above are displayed.
NG → See step 2
OK → PROCEED TO PROBLEM SYMPTOMS TABLE NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
- INSPECT GENERATOR ASSEMBLY
- Inspect generator assembly. Refer to INSPECTION
.
OK
Generator assembly is normal.
NG → CHECK AND REPLACE GENERATOR ASSEMBLY
OK: Go to next step
- Inspect generator assembly. Refer to INSPECTION
.
- CHECK HARNESS AND CONNECTOR (GENERATOR - FRONT CONTROLLER)
- Measure the voltage according to the value(s) in the table below.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard voltage
Tester Connection Condition Specified Condition 1H-6 - Body ground Engine running 10 to 14 V
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → PROCEED TO PROBLEM SYMPTOMS TABLE NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
- Measure the voltage according to the value(s) in the table below.