From 08/2009

CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: P1630: Communication Error from VSC to ECM
P1630 - Communication Error from VSC to ECM

DESCRIPTION

The skid control ECU (brake actuator assembly) sends signals such as cruise control cancel signals and brake demand response signals to the ECM when the dynamic radar cruise control system is in operation.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC (CAN COMMUNICATION SYSTEM)

(a) Check for DTCs Diagnosis System.

NG -- GO TO CAN COMMUNICATION SYSTEM CAN Communication System
OK -- Continue to next step.

2. REPLACE BRAKE ACTUATOR ASSEMBLY

(a) Replace the brake actuator assembly Components.

NEXT -- Continue to next step.

3. CHECK DTC (RADAR CRUISE CONTROL SYSTEM)

(a) Clear the DTCs Dynamic Radar Cruise Control System.

(b) Perform the following to make sure that the DTC detection conditions are met.

HINT
If the detection conditions are not met, the malfunction cannot be detected.

(1) Drive the vehicle at a speed of 50 km/h (31 mph) or more.

(2) Turn the cruise control main switch on.

(c) Check for DTCs Dynamic Radar Cruise Control System.

Result:





B -- REPLACE ECM Components

A -- END