Last Modified: 07-31-2024 |
6.11:8.1.0 |
Doc ID: RM1000000026XMV |
Model Year Start: 2023 |
Model: GR Corolla |
Prod Date Range: [09/2022 - 11/2022] |
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model with Dual Knob Type): B1324; Lost Communication with Meter; 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022] |
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 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 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.
PROCEDURE
(a) Check for DTCs and check that no DTCs are output.
Body Electrical > Navigation System > Trouble Codes
Result
|
Proceed to
|
DTC B1324 is not output
|
A
|
DTC B1324 is output
|
B
|
B
|
|
|
2.
|
CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY POWER SOURCE)
|
(a) Disconnect the I4 combination meter assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
I4-23 (ES) - Body ground
|
Always
|
Below 1 Ω
|
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
|
Condition
|
Specified Condition
|
I4-22 (B) - Body ground
|
Always
|
11 to 14 V
|
I4-38 (IG+) - Body ground
|
Ignition switch ON
|
11 to 14 V
|
Result
|
Proceed to
|
OK (w/ Headup Display System)
|
A
|
OK (w/o Headup Display System)
|
B
|
NG
|
C
|
C |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
A
|
|
|
3.
|
CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 2 JUNCTION CONNECTOR)
|
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the I108 No. 2 junction connector.
(c) Connect the I4 combination meter assembly connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
I108-3 - I108-14
|
Cable disconnected from negative (-) battery terminal
|
108 to 132 Ω
|
OK
|
|
|
4.
|
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 2 JUNCTION CONNECTOR)
|
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the I108 No. 2 junction connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
I108-1 - I108-12
|
Cable disconnected from negative (-) battery terminal
|
108 to 132 Ω
|
OK |
|
REPLACE NO. 2 JUNCTION CONNECTOR
|
NG
|
|
|
5.
|
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 2 JUNCTION CONNECTOR)
|
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the I56 radio and display receiver assembly connector.
(c) Connect the I108 No. 2 junction connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
I56-5 (CNH1) - I56-6 (CNL1)
|
Cable disconnected from negative (-) battery terminal
|
108 to 132 Ω
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
6.
|
CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - NO. 2 JUNCTION CONNECTOR)
|
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the I4 combination meter assembly connector.
(c) Connect the I108 No. 2 junction connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
I4-27 (MSCH) - I4-10 (MSCL)
|
Cable disconnected from negative (-) battery terminal
|
108 to 132 Ω
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
7.
|
CHECK HARNESS AND CONNECTOR
|
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the I4 combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
I4-27 (MSCH) - I4-10 (MSCL)
|
Cable disconnected from negative (-) battery terminal
|
108 to 132 Ω
|
NG
|
|
|
8.
|
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY)
|
(a) Disconnect the I56 radio and display receiver assembly connector.
(b) Disconnect the I4 combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
I56-5 (CNH1) - I4-27 (MSCH)
|
Always
|
Below 1 Ω
|
I56-6 (CNL1) - I4-10 (MSCL)
|
Always
|
Below 1 Ω
|
I56-5 (CNH1) or I4-27 (MSCH) - Body ground
|
Always
|
10 kΩ or higher
|
I56-6 (CNL1) or I4-10 (MSCL) - Body ground
|
Always
|
10 kΩ or higher
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|