Power Supply Testing

Main Power Supply and Ground Circuit

WIRING DIAGRAM

Terminals 4 Thru 124:

ECM TERMINALS AND REFERENCE VALUE
Specification data are reference values and are measured between each terminal and 32 (ECM ground).

1 Of 15 / Inspection Start:

2 Of 15 / Check Power Supply I:

3 Of 15 / Detect Malfunctioning Part:

4 Of 15 / Check Ground Circuit I:

5 Of 15 / Detect Malfunctioning Part:

6 Of 15 / Check Power Supply II:

7 Of 15 / Detect Malfunctioning Part:

8 Of 15 / Check Power Supply III:

9 Of 15 / Check Power Supply IV:

10 Of 15 / Detect Malfunctioning Part:

11 Of 15 / Check Output Signal Circuit:

12 Of 15 / Check Harness Continuity Between ECM Relay And ECM:

13 Of 15 / Check ECM Relay:

14 Of 15 / Check Ground Circuit II:

15 Of 15 / Check Intermittent Incident:

DIAGNOSTIC PROCEDURE