DTC P161A-87: Lost Communication with Alternator Missing Message [11/2016 - ]: Procedure
WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK CHARGING SYSTEM
- Check the charging system.
Refer to ON-VEHICLE INSPECTION [11/2016 - ]
Result OK NG
Result:
NG
REPAIR OR REPLACE CHARGING SYSTEM
Result:
OK
Go to next step
- Check the charging system.
- CHECK HARNESS AND CONNECTOR (ECM - GENERATOR ASSEMBLY)
- Disconnect the C1 ECM connector.
- Disconnect the C81 generator assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition C1-135 (LIN) - C81-2 (LIN) Always Below 1 Ω C1-135 (LIN) or C81-2 (LIN) - body ground Always 10 kΩ or higher
Result:
OK
REPLACE GENERATOR ASSEMBLY. Refer to REMOVAL [11/2016 - ] .
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR