DTC P161A-87: Lost Communication with Alternator Missing Message [03/2023 - 09/2024]: Procedure

1. Check the charging system.

   Refer to ON-VEHICLE INSPECTION [09/2022 - 09/2024] 

   Result

   Result
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE CHARGING SYSTEM 

Result: 

OK 

See step  2

1. Disconnect the C76 ECM connector.
2. Disconnect the C81 generator assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (for K120)

   Tester Connection	Condition	Specified Condition
   C76-62 (LIN) - C81-2 (LIN)	Always	Below 1 Ω
   C76-62 (LIN) or C81-2 (LIN) - Body ground	Always	10 kΩ or higher

   Standard Resistance (for K121)

   Tester Connection	Condition	Specified Condition
   C160-90 (LIN) - C81-2 (LIN)	Always	Below 1 Ω
   C160-90 (LIN) or C81-2 (LIN) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE GENERATOR ASSEMBLY 

for Denso Made Generator: Refer to REMOVAL [03/2023 - ]

for VALEO Made: Refer to REMOVAL [11/2022 - ]

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR