Component Function Check
- INSPECTION START
Turn ignition switch OFF, and restart engine.
Does the engine start?
YES-1: With CONSULT-III: GO TO 2.
YES-2: Without CONSULT-III: GO TO 3.
No: Go to "DIAGNOSIS PROCEDURE ".
- CHECK IGNITION SIGNAL FUNCTION
With CONSULT-III
- Perform "POWER BALANCE" in "ACTIVE TEST" mode with CONSULT-III.
- Make sure that each circuit produces a momentary engine speed drop.
Is the inspection result normal?
YES: INSPECTION END
NO: Go to "DIAGNOSIS PROCEDURE ".
- CHECK IGNITION SIGNAL FUNCTION
Without CONSULT-III
- Let engine idle.
- Read the voltage signal between ECM harness connector terminals under the following conditions with an oscilloscope.
VOLTAGE REFERENCE
| ECM | Voltage signal | |||
|---|---|---|---|---|
| + | - | |||
| Connector | Terminal | Connector | Terminal | |
| F101 | 11 | M107 | 128 | |
| 12 | ||||
| 15 | ||||
| 16 | ||||
| 19 | ||||
| 20 | ||||
NOTE:
The pulse cycle changes depending on RPM at idle.
Is the inspection result normal?
YES: INSPECTION END
NO: Go to "DIAGNOSIS PROCEDURE ".