B2661

NETWORKING: LIN COMMUNICATION SYSTEM: B2661: Lost Communication with Combination Meter
B2661 - Lost Communication with Combination Meter

DESCRIPTION

This DTC is stored when LIN communication between the driving support switch control ECU and combination meter assembly stops 10 seconds or more.

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:
* When using the Techstream with the engine switch off to troubleshoot:
Connect the Techstream to the vehicle and turn a courtesy light switch on and off at 1.5 second intervals until communication between the Techstream and vehicle begins.
* Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1. CLEAR DTC

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

NEXT -- Continue to next step.

2. CHECK FOR DTC

(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

OK:

DTC B2661 is not output.

NG -- CHECK HARNESS AND CONNECTOR (DRIVING SUPPORT SWITCH CONTROL ECU - COMBINATION METER)

OK -- USE SIMULATION METHOD TO CHECK

3. CHECK HARNESS AND CONNECTOR (DRIVING SUPPORT SWITCH CONTROL ECU - COMBINATION METER)

(a) Disconnect the G60 driving support switch control ECU connector.

(b) Disconnect the G3 combination meter assembly connector.

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

Standard Resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (COMBINATION METER - BATTERY AND BODY GROUND)

(a) Disconnect the G3 combination meter assembly connector.

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

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

5. REPLACE COMBINATION METER ASSEMBLY

(a) Temporarily replace the combination meter assembly with a new or normally functioning one Removal.

NEXT -- Continue to next step.

6. CLEAR DTC

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

NEXT -- Continue to next step.

7. CHECK FOR DTC

(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

NG -- REPLACE DRIVING SUPPORT SWITCH CONTROL ECU Removal

OK -- END (COMBINATION METER IS DEFECTIVE)