P1630

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 sends signals such as cruise control cancel demand signals and brake operation demand from ECM response signals to the ECM when the dynamic radar cruise control system is operating.





WIRING DIAGRAM

Refer to DTC P1575 P1575.

INSPECTION PROCEDURE

NOTICE:
When the ECM is replaced with a new one, initialization must be performed Installation.

PROCEDURE

1. READ OUTPUT DTC (DTC P1630)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

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

(e) 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 (30 mph) or more.

(2) Turn the cruise control main switch on.

(f) Enter the following menus: Powertrain / Radar Cruise / Trouble Codes.

(g) Read the DTCs Dynamic Radar Cruise Control System.

Result:





B -- REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)

A -- USE SIMULATION METHOD TO CHECK Electronic Circuit Inspection Procedure

2. REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)

(a) Replace the brake actuator assembly (skid control ECU) Removal.

NEXT -- Continue to next step.

3. CHECK WHETHER DTC OUTPUT RECURS (DTC P1630)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

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

(e) 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 (30 mph) or more.

(2) Turn the cruise control main switch on.

(f) Enter the following menus: Powertrain / Radar Cruise / Trouble Codes.

(g) Read the DTCs Dynamic Radar Cruise Control System.

Result:





C -- REPLACE ECM (for 4GR-FSE) Removal

B -- REPLACE ECM (for 2GR-FSE) Removal

A -- END