Symptom Tests: Notes
CAUTION:
Before proceeding, see ANTI-LOCK BRAKE SAFETY PROCEDURES
article in GENERAL INFORMATION.
CAUTION:
When battery or ECM is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until adaptation systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES
article in GENERAL INFORMATION before disconnecting battery.
NOTE:
For information on Hydraulic Brake Booster (HBB), see HYDRAULIC BRAKE BOOSTER - MONTERO
article.
NOTE:
For circuit identification, see PIN VOLTAGE CHARTS
or WIRING DIAGRAMS
. To locate harness connectors called out in testing, see Figure
and Figure
.
SYMPTOM TEST INDEX
| Symptom | Perform Test No. |
|---|---|
| No Communication With Scan Tool (All Systems) | 1 |
| No Communication With Scan Tool (ABS Only) | 2 |
| ABS Warning Light Does Not Illuminate | 3 |
| ABS Warning Light Remains Illuminated | 4 |
| ABS Warning Light Is Not Illuminated With Ignition In Start Position | 5 |
| Abnormal ABS Warning Light Operation | 6 |
| Faulty ABS Operation | 7 |