Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: 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.

DTC Detection Condition

Trouble Area

B1324

After the radio and display receiver assembly receives a registration information signal, which is sent by the combination meter assembly when the ignition switch is turned to ACC, 1 or more times, the radio and display receiver assembly does not receive the signal for 30 seconds or more.

  • Combination meter assembly
  • Radio and display receiver assembly
  • Harness or connector

WIRING DIAGRAM

PROCEDURE

PROCEDURE

1.

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

(a) Disconnect the R32 radio and display receiver assembly connector.

(b) Disconnect the C9 combination meter assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

R32-3 (CNH1) - C9-4 (MSCH)

Always

Below 1 Ω

R32-4 (CNL1) - C9-5 (MSCL)

Always

Below 1 Ω

R32-3 (CNH1) - Body ground

Always

10 kΩ or higher

R32-4 (CNL1) - Body ground

Always

10 kΩ or higher

R32-3 (CNH1) - R32-4 (CNL1)

Always

10 kΩ or higher

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

R32-3 (CNH1) - Body ground

Always

Below 1 V

R32-4 (CNL1) - Body ground

Always

Below 1 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.

INSPECT COMBINATION METER ASSEMBLY

(a) Remove the combination meter assembly (See page ).

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

4 (MSCH) - 5 (MSCL)

Always

108 to 132 Ω

Text in Illustration

*a

Component without harness connected

(Combination Meter Assembly)

NG

REPLACE COMBINATION METER ASSEMBLY

OK

3.

INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

(a) Remove the radio and display receiver assembly (See page ).

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

3 (CNH1) - 4 (CNL1)

Always

108 to 132 Ω

Text in Illustration

*a

Component without harness connected

(Radio and Display Receiver Assembly)

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

OK

4.

REPLACE COMBINATION METER ASSEMBLY

(a) Replace the combination meter assembly with a new or known good one (See page (b) Clear the DTCs (See page  ). (b) Clear the DTCs (See page  ). ).

(b) Clear the DTCs (See page (c) Recheck for DTCs and check that no DTCs are output. ).

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

OK:

No DTCs are output.

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

OK

5.

CHECK METER / GAUGE SYSTEM

(a) Turn the ignition switch to ON and wait 30 seconds.

(b) Operate the steering pad switch assembly and check that the audio tab is displayed on the multi-information display in the combination meter assembly and the audio system can be operated normally.

OK:

Audio system returns to normal.

OK

END

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Audio and Visual System DTC Code Detection Item See page B1324 Lost Communication with Meter ...

LVDS Signal Malfunction (from Extension Module) (B1532)
DESCRIPTION The stereo component tuner assembly and the radio and display receiver assembly are connected by an LVDS communication line. This DTC is stored when an LVDS communication error occurs ...

Other materials:

Outer Mirror Switch
Inspection INSPECTION PROCEDURE 1. INSPECT OUTER MIRROR SWITCH ASSEMBLY (a) Check the mirror select switch and mirror surface adjust switch. (1) Turn the mirror select switch to the L position. Text in Illustration *a Mirror Select and Surfac ...

Data List / Active Test
DATA LIST / ACTIVE TEST 1. DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals ...

Pressure Sensor or Switch (C1254)
DESCRIPTION The accumulator pressure sensor is connected to the skid control ECU in the master cylinder solenoid. DTC No. DTC Detecting Condition Trouble Areas C1254 Accumulator pressure sensor fault (Fluid pressure does not chang ...

© 2011-2019 Copyright www.ttguide.net