PDM Ground Circuit Inspection
- Check short at ground terminal of PDM
- IG "ON" & ENG "OFF".
- Measure voltage between ESCL ground terminal of PDM and chassis ground.
(Measure the voltage while ESCL doesn't work.)
Specification: Approx. 0 V
- Is the measured voltage within specifications?
YES
- Go to "Check short to power on ESCL GND circuit " procedure.
NO
- Check open or short on the ground circuit between PDM and ESCL.
Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR "
- Check short to power on ESCL GND circuit
- IG "ON" & ENG "OFF"
- Disconnect the connectors of IPM, PDM, ESCL.
- Measure voltage between ESCL ground terminal and chassis ground.
Specification: Approx. 0 V
- Is the measured voltage within specifications?
YES
- Substitute with a known-good ESCL and check for proper operation.
If the problem is corrected, replace the unit and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
- Substitute with a known-good PDM and check for proper operation.
If the problem is corrected, replace the unit and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR ".
- Substitute with a known-good ESCL and check for proper operation.