Sensor Signal Check (Test Mode)
SENSOR SIGNAL CHECK (TEST MODE)
HINT: If the ignition switch is turned from ON to ACC or LOCK during test mode, DTC will be erased.
(a) In case of not using LEXUS hand-held tester: Check the sensor signal.
(1) Turn the ignition switch OFF.
(2) Using SST, connect terminals TS and E1 of DLC1.
SST 09843-18020
(3) Start the engine.
(4) Check that the ABS warning light blinks.
HINT: If the ABS warning light does not blink, inspect the ABS warning light circuit and TS circuit.
(5) keep the vehicle in the stationary condition on the flat place for 6 sec. or more.
(6) Shift the transfer lever in L4 position and turn the Center diff. lock switch ON.
(7) Drive vehicle straightforward.
When driving the vehicle with the speed faster than 45 km/h (28 mph) for several seconds, check that the ABS warning light comes off.
HINT: There is a case that the sensor check is not completed if the vehicle has its rear wheels spun or its steering wheel steered during this check.
(8) Stop the vehicle.
(9) Check ABS warning light goes off when the rear diff. lock indicator light lights Lip or flashes.
HINT: While the rear diff. is being locked, ECU records DTC 48.
(10) Using SST, connect terminals TC and E1 of DLC1.
SST 09843-18020
(11) Read the number of blinks of the ABS warning light.
HINT:
- See the list of DTC's shown below.
- If every sensor is normal, a normal code is output (A cycle of 0.25 sec. ON and 0.25 sec. OFF is repeated).
- If 2 or more malfunctions are indicated at the same time, the lowest numbered code will be displayed 1st.
(12) After doing the check, disconnect terminals TS and E1, TC and E1 of DLC1 and turn the ignition switch OFF.
(b) In case of using LEXUS hand4ield tester: Check the sensor signal.
(1) Hook up the LEXUS hand-held tester to the DLC3.
(2) Do step (3) to (9) shown above.
(3) Read the DTC by following the prompts on the tester screen.
HINT: Please refer to the LEXUS hand-held tester operator's manual for further details.
DTC of the sensor check function: