CHARGING SYSTEM, Diagnostic DTC:P161A

DTC Code DTC Name
P161A LIN Communication Error with Alternator

DESCRIPTION

The ECM and generator assembly detect reception errors respectively.

The generator assembly reception error detected by the generator assembly is sent to the ECM via LIN communication. If an error occurs in the ECM or generator assembly, the ECM determines there is a LIN communication error and stores this DTC.

DTC Code DTC Detection Condition Trouble Area
P161A A reception error in the ECM or generator assembly continues for approximately 17 minutes or more with the ignition switch ON (1 trip detection logic).

  • Wire harness or connector

  • Generator assembly

  • ECM

WIRING DIAGRAM

A0058NTE37
*a Generator Assembly
*b LIN Communication Line

PROCEDURE


  1. CHECK CHARGING SYSTEM


    1. Check the charging system Click here.


    NG

    REPAIR OR REPLACE CHARGING SYSTEM

    OK

  2. CHECK HARNESS AND CONNECTOR (ECM - GENERATOR ASSEMBLY)


    1. Disconnect the B53 ECM connector.

    2. Disconnect the B50 generator assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      B53-61 (LIN) - B50-2 (LIN) Always Below 1 Ω
      B53-61 (LIN) or B50-2 (LIN) - Body ground and other terminals Ignition switch off (while LIN communication is stopped) 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT GENERATOR ASSEMBLY


    1. Inspect the generator assembly Click here.


    OK

    REPLACE ECM Click here

    NG

    REPLACE GENERATOR ASSEMBLY Click here