Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001QYFY
Model Year Start: 2021 Model: RAV4 Prod Date Range: [08/2020 - 10/2022]
Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: B1324; Lost Communication with Meter; 2021 - 2022 MY RAV4 RAV4 HV [08/2020 - 10/2022]

DTC

B1324

Lost Communication with Meter

DESCRIPTION

These DTCs are stored when communication between the radio and display receiver assembly and combination meter assembly is not possible.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B1324

Lost Communication with Meter

CAN reception error
  • Local bus communication line
  • Combination meter power source circuit
  • Combination meter assembly
  • Radio and display receiver assembly
  • Harness or connector
  • No. 12 junction connector

HINT:

The radio and display receiver assembly is the master unit.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly 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 may not operate normally.
  • Inspect the fuses for circuits related to this system before performing the following procedure.
  • When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

HINT:

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 2020 - 2022 MY RAV4 RAV4 HV [10/2019 - 10/2022]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PRECAUTION

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY POWER SOURCE)

(a) Disconnect the combination meter assembly connector.

*a

Front view of wire harness connector

(to Combination Meter Assembly)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G18-23 (ES) - Body ground

Always

Below 1 Ω

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

G18-22 (B) - Body ground

Ignition switch off

11 to 14 V

G18-38 (IG+) - Body ground

Ignition switch ON

11 to 14 V*1

10.5 to 16 V*2
  • *1: w/o Stop and Start System
  • *2: w/ Stop and Start System
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

2.

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 12 JUNCTION CONNECTOR)

(a) Disconnect the cable from the negative (-) auxiliary battery terminal.

*a

Rear view of wire harness connector

(No. 12 CAN Junction Connector)

(b) Disconnect the No. 12 CAN junction connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G95-10 - G95-21

Cable disconnected from negative (-) auxiliary battery terminal

108 to 132 Ω
NG

GO TO STEP 5

OK

3.

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 12 JUNCTION CONNECTOR)

(a) Disconnect the cable from the negative (-) auxiliary battery terminal.

*a

Rear view of wire harness connector

(No. 12 CAN Junction Connector)

(b) Disconnect the No. 12 CAN junction connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G95-9 - G95-20

Cable disconnected from negative (-) auxiliary battery terminal

108 to 132 Ω
OK

REPLACE NO. 12 JUNCTION CONNECTOR
NG

4.

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 12 JUNCTION CONNECTOR)

(a) Disconnect the cable from the negative (-) auxiliary battery terminal.

*a

Front view of wire harness connector

(to Radio and Display Receiver Assembly)

(b) Disconnect the radio and display receiver assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G2-5 (CNH1) - G2-6 (CNL1)

Cable disconnected from negative (-) auxiliary battery terminal

108 to 132 Ω
OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 12 JUNCTION CONNECTOR)

(a) Disconnect the cable from the negative (-) auxiliary battery terminal.

*a

Front view of wire harness connector

(to Combination Meter Assembly)

(b) Disconnect the combination meter assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G18-27 (MSCH) - G18-10 (MSCL)

Cable disconnected from negative (-) auxiliary battery terminal

108 to 132 Ω
OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR