DESCRIPTION
The ECM communicates with the generator assembly via LIN communication. If a LIN communication error is detected, the ECM stores this DTC.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Memory | Note |
---|---|---|---|---|---|---|
P161A87 | Lost Communication with Alternator Missing Message | Generator assembly or ECM communication stops for approximately 17 minutes or more with the engine switch on (IG). (1 trip detection logic) |
| Charge warning light comes on | DTC stored | SAE Code: P161A |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. | CHECK CHARGING SYSTEM |
(a) Check the charging system.
Click here
NG | ![]() | REPAIR OR REPLACE CHARGING SYSTEM |
|
2. | CHECK HARNESS AND CONNECTOR (ECM - GENERATOR ASSEMBLY) |
(a) Disconnect the D2 ECM connector.
(b) Disconnect the D48 generator assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
D48-2 (LIN) - D2-135 (LIN) | Always | Below 1 Ω |
D48-2 (LIN) or D2-135 (LIN) - Body ground | Always | 10 kΩ or higher |
OK | ![]() | REPLACE GENERATOR ASSEMBLY |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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