W/Harness Inspection

Power Distribution Module
B1990 ESCL Battery Short Circuit To Ground - Inspection/Repair:_:W/Harness Inspection

Terminal & Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found?






PDM Ground Circuit Inspection

Check short at power terminal of PDM
1. IG "ON" & ENG "OFF".
2. (2) Measure voltage between ESCL power terminal of PDM and chassis ground.
(Measure the voltage while ESCL works.)

Specification :Approx. 12 V




3. Is the measured voltage within specifications?





Check short to ground on ESCL power circuit
1. IG "ON" & ENG "OFF"
2. Disconnect the connectors of IPM, PDM, ESCL.
3. Measure resistance between ESCL power terminal and chassis ground.

Specification :Infinity Ohms




4. Is the measured voltage within specifications?