Vauxhall Workshop Service and Repair Manuals

Test

Step

Tester Multimeter

Test

Notes

Nominal Value

MKM-587-A

of

between

14

Ohmmeter, range 2 kW

Control inputs ECWW motor M 47

(driver's door)

X 31/

Ter. 29

X 31/

Ter. 29

S 37.1/

Ter. 7

(BLRT)

S 37.1/

Ter. 8

(GR- GN)

·   Disconnect driver's door wiring harness plug X 31

·   Remove driver's door ECWW switch S 37.1

·   Measure between wiring harness plug X 31 (door side) and S 37.1

560 - 600 W

560 - 600 W

Possible faults:

(if nominal value is not attained)

Measured resistance higher than nominal value:

1.  Interruption between ECWW switch S 37.1 and ECWW switch wiring harness plug, driver's door X 49.

2.  ECWW switch wiring harness plug, driver's door X 49 disconnected.

3.  Interruption in driver's door wiring harness between wiring harness plug X 49 and ECWW motor M 47.

4.  ECWW motor M 47 defective.

Measured resistance lower than nominal value (less than 10 W):

1.  Short circuit to ground between ECWW switch S 37.1 and ECWW switch wiring harness plug, driver's door X 49.

2.  Short circuit to ground in driver's door wiring harness between wiring harness plug X 49 and ECWW motor M 47.

3.  Short circuit to ground in ECWW motor M 47.