Component Location
General Description

The A/C Control Unit will only update the Ambient Temperature Display when vehicle speed is received from the ESC through the CAN lines.

DTC Description

DTC B1686 sets if the vehicle speed signal has not been received through the CAN lines.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Check CAN signal

1.

Faulty WSS.

2.

CAN communication.

Enable Conditions

Ignition ON

Threshold value

No signal via CAN for 1.5 seconds or Error value received.

Failsafe

Substitued WSS = 0 MPH

Diagnostic Circuit Diagram
Яндекс.Метрика