LEMON Manuals: Even more car manuals for everyone
Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 88 (Audio, Visual & Navigation System (DTC/Circuit Diagnosis) (Telematics System) (Except Hybrid)) >> DTC/Circuit Diagnosis >> DTC U1A00: TCU >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to WIRING DIAGRAM (Bose Audio w/Navi w/o Surround) or WIRING DIAGRAM (Bose Audio w/Navi and Surround).

  1. CHECK ACC POWER CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect TCU connector M47.
    3. Check voltage between TCU connector and ground.
      TCU Ground Condition Voltage
      (Approx.)
      Connector Terminal
      M47 3 - Ignition switch: ACC Battery voltage

    Is the inspection result normal?

    YES 

    Replace TCU. Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair or replace harness or connectors.

scientia non olet · About LEMON Manuals