Acceleration/Deceleration Sensor: Description and Operation
INSPECTION OF DIAGNOSIS SYSTEM1. INSPECT BATTERY POSITIVE VOLTAGE
Inspect that the battery positive voltage is about 12 V.
2. CHECK THAT WARNING LIGHT TURNS ON
(a) Turn the ignition switch on.
(b) Check that the "ABS" warning light turns on for 3 seconds. If not, inspect and repair or replace the fuse, bulb and wire harness.
(c) Check that the "ABS" warning light turns off.
(d) Turn the ignition switch off.
3. PERFORM FOLLOWING STEPS
(a) Using SST, connect terminals Ts to E1 of the data link connector 1. SST 09843-18020
(b) Pull the parking brake lever up, and start the engine.
HINT: Do not depress the brake pedal.
(c) Check that the warning light blinks about 4 times every 1 second as shown.
5. (4WD vehicles) INSPECT DECELERATION SENSOR SIGNAL
(a) Drive the vehicle straight ahead at about 20 km/h (12.4 mph) or more, depress the brake pedal a little strong.
(b) Check that the warning light turns on while braking.
(c) Stop the vehicle.
6. READ DIAGNOSTIC TROUBLE CODE
(a) Using SST, connect the terminals Tc to E1 of the data link connector 1. SST 09843-18020
HINT: Do not disconnect the terminal Ts to E1.
(b) Read the number of blinks.
(See DIAGNOSTIC TROUBLE CODE)
HINT: The first number of blinks will equal the first digit of a two digit diagnostic trouble code. After a 1.5 second pause, the 2nd number of blinks will equal the 2nd number of a two digit code. If there are two or more codes, there will be a 2.5 second pause between each code, and then indication will begin again after a 4.0 second pause, continuing in order from the smaller value up to the larger one.
Diagnostic Trouble Code Descriptions:
DIAGNOSTIC CODE