Component Tests
SPEED SENSOR SIGNALa. In case of not using hand-held tester:
Check the speed sensor signal.
1. Turn the ignition switch OFF.
2. Using SST, connect terminals Ts and E1 of the 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.
5. Drive the vehicle straight forward.
HINT: Drive the vehicle faster than 45 km/h (28 mph) for several seconds.
6. Stop the vehicle.
7. Using SST, connect terminals Tc and E1 of the DLC1.
SST 09843-18020
8. Read the number of blinks of the ABS warning light.
HINT:
- See the list of DTC list.
- If 2 or more malfunctions are indicated simultaneously, the lowest numbered code will be displayed first.
- If every sensor is normal, the normal code is output (A cycle of 0.25 seconds ON and 0.25 seconds OFF is repeated).
9. After doing the check, disconnect the SST from terminals Ts and E1, Tc and E1 of the DLC1, and turn the ignition switch OFF.
SST 09843-18020
b. In case of using hand-held tester:
Check the speed sensor signal.
1. Connect the hand-held tester to the DLC2.
2. Do step 3 to 6.
3. Read the DTC by following the prompts on the tester screen.
Please refer to the hand-held tester operator's manual for further details.
C1271/71 - C1278/78:
DTC of speed sensor check function