Power Supply Testing

Wiring Diagram




ECM TERMINALS AND REFERENCE VALUE
Specification data are reference values and are measured between each terminal and 43 (ECM ground) .

1 INSPECTION CHART:

2 CHECK POWER SUPPLY-1:

3 DETECT MALFUNCTIONING PART:

4 CHECK POWER SUPPLY-II:

5 DETECT MALFUNCTIONING PART:

6 CHECK POWER SUPPLY-III:

7 CHECK HARNESS CONTINUITY BETWEEN ECM RELAY AND ECM:

8 DETECT MALFUNCTIONING PART:

9 CHECK VOLTAGE BETWEEN ECM RELAY AND GROUND:

10 DETECT MALFUNCTIONING PART:

11 CHECK OUTPUT SIGNAL CIRCUIT:

12 DETECT MALFUNCTIONING PART:

13 CHECK ECM RELAY:

14 CHECK GROUND CIRCUIT:

15 CHECK INTERMITTENT INCIDENT:

DIAGNOSTIC PROCEDURE