Toyota CH-R Service Manual: GVIF Disconnected (from Extension Module to H/U) (B153A)

Toyota CH-R Service Manual / Navigation / Multi Info Display / Navigation System / GVIF Disconnected (from Extension Module to H/U) (B153A)

DESCRIPTION

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B153A

GVIF Disconnected (from Extension Module to H/U)

GVIF disconnected (from navigation ECU to radio and display receiver assembly)
  • Harness or connector
  • Navigation ECU
  • Radio and display receiver assembly
  • No. 1 Navigation Wire
  • Antenna Cord Sub-assembly

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

    Click here

  • When replacing the radio and display receiver assembly or navigation ECU, always replace it with a new one. If a radio and display receiver assembly or navigation ECU which was installed to another vehicle is used, the following may occur:
    • A communication malfunction DTC may be stored.
    • The radio and display receiver assembly or navigation ECU may not operate normally.

PROCEDURE

1.

CHECK DTC

(a) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(b) Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

2.

INSPECT NO. 1 NAVIGATION WIRE

(a) Disconnect the GA No. 1 navigation wire connector from the antenna cord sub-assembly.

*a

Front view of wire harness connector

(to Navigation ECU)

*b

Front view of wire harness connector

(to Antenna Cord Sub-assembly)

(b) Disconnect the GU No. 1 navigation wire connector from the navigation ECU.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

GU-1 (GV-) - GA-1

Always

Below 1 Ω

GU-2 (GV+) - GA-2

Always

Below 1 Ω

GU-3 (GND) - GA-3

Always

Below 1 Ω
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

3.

REPLACE ANTENNA CORD SUB-ASSEMBLY

(a) Replace the antenna cord sub-assembly with a new or known good one.

Click here

NEXT

4.

CHECK DTC

(a) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(b) Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

END (ANTENNA CORD SUB-ASSEMBLY IS DEFECTIVE)
NG

5.

REPLACE NAVIGATION ECU

(a) Replace the navigation ECU with a new one.

Click here

NEXT

6.

CHECK DTC

(a) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(b) Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

END (NAVIGATION ECU IS DEFECTIVE)
NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

    Lost Communication with Meter (B1324)
    DESCRIPTION This DTC is stored when a communication error occurs between the radio and display receiver assembly and combination meter assembly. DTC No. Detection Item ...

    Satellite Radio Broadcast cannot be Received
    CAUTION / NOTICE / HINT NOTICE: Some satellite radio broadcasts require payment. A contract must be made between a satellite radio company and the user. If the contract expires, it will not be p ...

    Other materials:

    Toyota CH-R Service Manual > Vehicle Stability Control System: Excessive Brake Pedal Travel (No Fluid Leaks and No Air in System)
    DESCRIPTION Depending on the malfunction, the skid control ECU (brake actuator assembly) prohibits operation of the vehicle stability control system to protect components and prevent incorrect operation when DTCs are stored. If the switching solenoid is disabled due to prohibition of the vehic ...

    Toyota CH-R Service Manual > Air Conditioning Pressure Sensor: Installation
    INSTALLATION PROCEDURE 1. INSTALL AIR CONDITIONER PRESSURE SENSOR (for VALEO Made) (a) Remove the vinyl tape from the cooler refrigerant liquid pipe A. (b) Sufficiently apply compressor oil to a new air conditioner pressure sensor and the fitting surface of the air conditioner pressure sensor. ...

    Toyota C-HR (AX20) 2023-2025 Owner's Manual

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2025 Copyright www.tochr.net
    0.0131