Test Mode Procedure

TEST MODE PROCEDURE





1. VGRS SENSOR SIGNAL CHECK (TEST MODE)

HINT:
^ Before entering Test Mode, check and repair any current VGRS DTCs.
^ When entering test mode, the 4 sensor check DTCs are recorded at once. When the ECU judges that the sensor is normal during the test procedure, the DTC will be eliminated.

(a) Procedure for Sensor Test Mode using a SST check wire.
(1) Make sure the ignition switch is OFF.
(2) Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.
SST 09843-18040
(3) Turn the ignition switch ON.





(4) Check that the VGRS warning light is blinking.

HINT: If the VGRS warning light does not blink, inspect the warning light or TS terminal circuits.





(5) Start the engine.
(6) Turn the steering wheel from lock to lock.

NOTICE:
^ Check for any unusual feeling in the steering wheel operation.
^ Slowly turn the steering wheel from lock to lock. Check that it rotates approximately 2.4 turns.

HINT:
^ The warning light display has no change.
^ If the actuator moving amount is correctly checked, DTCs C1575/75 and C1576/76 in the test mode are cleared.

(7) Drive the vehicle at more than 10 km/h (6 mph) for 15 to 30 seconds.

HINT: If the vehicle speed sensor is correctly checked, DTCs C1571/71 and C1572/72 in the test mode are cleared.





(8) Stop the vehicle. Leave the engine running.





(9) Using SST, connect terminal of SST to terminal 13 (TC) of DLC3.
SST 09843-18040
(10) Read the number of blinks of the VGRS warning light.

HINT:
^ If all wheel speed sensors are normal, the normal blinking code is output. (A repeating cycle of 0.25 seconds ON and 0.25 seconds OFF.)
^ If 2 or more faults are detected at the same time, the lowest number will be displayed first.





(11) After completing the check, disconnect SST from DLC3 and turn the ignition switch OFF.
(b) Procedure for Sensor Test Mode using the intelligent tester.
(1) Connect the intelligent tester (with CAN VIM) to the DLC3.
(2) Turn the ignition switch ON.
(3) Complete the VGRS Test Mode following the prompts on the tester screen.

HINT: Refer to the intelligent tester operator's manual for further details.

(4) Read the DTCs.
(5) After completing the test, disconnect the tester and turn the ignition switch OFF.

DTC of VGRS sensor check function:

C1571/71:

C1572/72-C1576/76: