B2662
NETWORKING: LIN COMMUNICATION SYSTEM: B2662: Lost Communication with Clock/Outside Temperature Display
B2662 - Lost Communication with Clock/Outside Temperature Display
DESCRIPTION
This DTC is stored when LIN communication between the driving support switch control ECU and accessory meter assembly stops for 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 B2662 is not output.
NG -- CHECK HARNESS AND CONNECTOR (DRIVING SUPPORT SWITCH CONTROL ECU - ACCESSORY METER)
OK -- USE SIMULATION METHOD TO CHECK Electronic Circuit Inspection Procedure
3. CHECK HARNESS AND CONNECTOR (DRIVING SUPPORT SWITCH CONTROL ECU - ACCESSORY METER)
(a) Disconnect the G60 driving support switch control ECU connector.
(b) Disconnect the H26 accessory 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 (ACCESSORY METER - BATTERY AND BODY GROUND)
(a) Disconnect the H26 accessory meter assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Text in Illustration
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. REPLACE ACCESSORY METER ASSEMBLY
(a) Temporarily replace the accessory 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.
OK:
DTC B2662 is not output.
NG -- REPLACE DRIVING SUPPORT SWITCH CONTROL ECU Removal
OK -- END (ACCESSORY METER IS DEFECTIVE)