ECWW, Checking Program
| Test | Test Equipment | Check | Notes | Nominal | |
|---|---|---|---|---|---|
| Step | Multimeter | Value | |||
| MKM-587-A | of | between | |||
| 13 | Ohmmeter, range 200 W | Rear right ECWW switch S37.4 in switch S37 (console) | · Disconnect rear right door wiring harness plug X14 | ||
| approx. | |||||
| 0 W | |||||
| X14/ Ter. 5 | 2-pin/ Ter. B (SW) | · Press "raise" on switch S37.4 and hold down |
· Measurement in wiring harness plug X14 (body side) and in 2-pin plug (right)
| X14/ Ter. 9 | 2-pin/ Ter. B (SW) | · Press "lower" on switch S37.4 and hold down |
· Measurement in wiring harness plug X14(body side) and in 2-pin plug (right)
| approx. | |
|---|---|
| 0 W | |
| Possible Faults: |
(If nominal value is not attained)
· Interruption or short circuit in body wiring harness between rear right door wiring harness plug X14 and 6-pin console wiring harness plug
· Console wiring harness plug detached.
· Interruption or short circuit between ECWW switch S37.4 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 rear right door wiring harness plug X14/Ter. 4.
· Ground connection corroded.
· ECWW switch S37.4 defective.