System Tests: Notes
NOTE:
Check system operation before and after performing any of the following diagnostic procedures, and after completing any repairs. To aid in wire color and terminal identification and/or component location, see WIRING DIAGRAMS . Refer to illustration for EHCU harness connector terminal identification. See Figure.
Symptom diagnosis covers malfunctions not diagnosed with ABS warning light, and which are not detected by EHCU self-diagnostic function. See SYMPTOM INDEX table. To diagnose by symptom, proceed to appropriate circuit test.
SYMPTOM INDEX
| Symptom |
Go To |
| ABS Works Frequently But Vehicle Does Not Decelerate |
TEST A-1 |
| ABS Works Frequently But Vehicle Does Not Decelerate |
TEST TA-1 |
| Uneven Braking Occurs While ABS Is Operating |
TEST A-2 |
| Uneven Braking Occurs While ABS Is Operating |
TEST TA-2 |
| Wheels Lock During Braking |
TEST A-3/TA-3 |
| Brake Pedal Feel Is Abnormal |
TEST A-4 |
| Braking Sound From Hydraulic Unit (Brakes Released) |
TEST A-5/TA-5 |
| ABS Warning Light Does Not Illuminate (Key ON/Engine OFF) |
TEST B-1 |