ECWW, Checking Program
| Test | Test Equipment | Check | Notes | Nominal | |
|---|---|---|---|---|---|
| Step | Multimeter | Value | |||
| MKM-587-A | of | between | |||
| 10 | Ohmmeter, range 200 W | Front left door ECWW switch S37.1 in switch S37 (console) | · Disconnect front left door wiring harness plug X11 |
· Disconnect 2-pin wiring harness plug
| X11/ Ter. 18 | 2-pin/ Ter. B (SW) | |||
|---|---|---|---|---|
| · Press "raise" on switch S37.1 and hold down | ||||
| approx. | ||||
| 0 W | ||||
| · Measurement in wiring harness plug X11 (body side) and in 2-pin plug (left) | ||||
| X11/ Ter. 17 | 2-pin/ Ter. B (SW) | · Press "lower" on switch S37.1 and hold down |
· Measurement in wiring harness plug X11 (body side) and in 2-pin plug (left)
| approx. | |
|---|---|
| 0 W | |
| Possible Faults: |
(If nominal value is not attained)
· Interruption or short circuit in body wiring harness between front left door wiring harness plug X11 and 9-pin console wiring harness plug.
· 9-pin console wiring harness plug detached.
· Interruption or short circuit between ECWW switch S37.1 and 9-pin console wiring harness plug (internally)
· Interruption or short circuit in body wiring harness between body ground and 6-pin console wiring harness plug Ter. 5.
· Interruption or short circuit in body wiring harness between body ground and front left door wiring harness plug X11/Ter. 29.
· Ground connection corroded.
· ECWW switch S37.1 defective.