CRUISE CONTROL: DYNAMIC LASER CRUISE CONTROL SYSTEM: DESCRIPTION (2008 Sequoia)

Last Modified: 11-29-2007		1.6 C
Service Category: Engine/Hybrid System	Section: Cruise Control
Model Year: 2008	Model: Sequoia	Doc ID: RM000000ZK400XX
Title: CRUISE CONTROL: DYNAMIC LASER CRUISE CONTROL SYSTEM: DESCRIPTION (2008 Sequoia)

DTC

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 laser cruise control system is in operation.

DTC No.	DTC Detection Condition	Trouble Area
P1630	While the dynamic laser cruise control is either preparing for operation or operating, if communication data from the skid control ECU is logically inconsistent for 0.5 seconds, the ECM records this logical error code	Communication circuit Skid control ECU ECM

INSPECTION PROCEDURE

HINT:

This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.

NOTICE:

When the distance control ECU and ECM is replaced with a new one, initialization must be performed .

PROCEDURE

1.	REPLACE SKID CONTROL ECU

Replace the skid control ECU .

CLEAR DTC

(a) Clear the DTC .

3.	CHECK FOR DTC

(a) Reproduce the DTC detection conditions under which the DTC is stored.

HINT:

If the DTC detection conditions are not correct, the system will not detect the trouble.

(b) Drive the vehicle at a speed of 45 km/h (28 mph) or more and turn the cruise control main switch ON. Push the -SET switch to activate the cruise control system.

Result

Result	Proceed to
DTC is not output	A
DTC is output (for 2UZ-FE)	B
DTC is output (for 3UR-FE)	C