Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM1000000018FBC
Model Year Start: 2018 Model: Sienna Prod Date Range: [11/2017 -           ]
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: B1324; Lost Communication with Meter; 2018 - 2020 MY Sienna [11/2017 -        ]

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.

DTC Detection Condition

Trouble Area

B1324

CAN reception error

  • Local bus communication line
  • Combination meter assembly power source circuit
  • Combination meter assembly
  • Radio and display receiver assembly
  • Harness or connector

HINT:

The radio and display receiver assembly is the master unit.

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 Audio and Visual System.
  • 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 occurs:
    • A communication malfunction DTC may be stored.
    • The radio and display receiver assembly may not operate normally.

HINT:

  • B1324 will not continue to output when clear DTC is performed even if the malfunction continues.

PROCEDURE

1.

CHECK DTC

(a) Check for DTCs and check that no DTCs are output.

Click here 2018 - 2020 MY Sienna [11/2017 -        ]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DTC CHECK / CLEAR

OK:

No DTCs are output.

NG

GO TO METER / GAUGE SYSTEM

OK

2.

CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY)

(a) Disconnect the D196 radio and display receiver assembly connector.

(b) Disconnect the D145 combination meter assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D196-5 (CNH1) - D145-18 (MSCH)

Always

Below 1 Ω

D196-6 (CNL1) - D145-19 (MSCL)

Always

Below 1 Ω

D196-5 (CNH1) - Body ground

Always

10 kΩ or higher

D196-6 (CNL1) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

3.

REPLACE COMBINATION METER ASSEMBLY

(a) Replace the combination meter assembly.

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL

NEXT

4.

CHECK DTC

(a) Clear the DTCs.

Click here 2018 - 2020 MY Sienna [11/2017 -        ]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DTC CHECK / CLEAR

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

Click here 2018 - 2020 MY Sienna [11/2017 -        ]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DTC CHECK / CLEAR

OK:

No DTCs are output.

OK

END (COMBINATION METER ASSEMBLY WAS DEFECTIVE)

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY