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ECWW, Checking Program Test Step 4 > < ECWW, Checking Program Test Step 2

ECWW, Checking Program

 

 

 

 

Test

Test Equipment

Check

Notes

Nominal

Step

Multimeter

 

 

 

Value

 

 

MKM-587-A

of

between

 

 

 

 

 

 

 

 

 

 

 

3

Ohmmeter, range

200 W

 

Standby for ECWW in ECWW switch S37 (centre console)

6-pin Ter. 5 (BR)

Ground

·   Disconnect 6-pin console wiring harness plug

 

 

·   Measurement between 6-pin wiring harness plug (body side) and body ground

 

approx.

0 W

 

 

 

 

6-pin Ter. 5 (BR)

9-pin Ter. 9 (GRWS)

·   Disconnect 9-pin console wiring harness plug

 

 

·   Open front left door

 

 

approx.

0 W

 

 

 

 

6-pin Ter. 5 (BR)

9-pin Ter. 8 (GR)

·   Measurement between 6-pin and 9-pin wiring harness plugs

     (body side of each)

 

 

approx.

0 W

 

 

Voltmeter, range

20 V, DC

Standby for ECWW in ECWW switch S37 (centre console)

6-pin/ Ter. 5 (BR)

9-pin/ Ter. 4 (RT)

·   Measurement between 6-pin and 9-pin wiring harness plugs (body side of each)

 

 

greater than

11.5 V

 

 

 

 

6-pin/ Ter. 5 (BR)

9-pin/ Ter. 6 (SW)

·   Ignition ON

 

 

·   Measurement in 6-pin and 9-pin wiring harness plugs

     (body side of each)

 

 

greater than

11.5 V

 

 

 

 

 

 

·   After measurement, ignition OFF

 

 

 

 

Possible Faults:

 

(If nominal value is not attained)

 

 

Measurement between 6-pin console wiring harness plug and body ground:

 

 

·   Interruption in body wiring harness between body ground and 6-pin wiring harness plug Ter. 5.

·   Ground connection corroded.

 

 

Measurement between 6-pin and 9-pin console wiring harness plugs or in 6-pin wiring harness plug:

 

 

·   Fuse F1 defective.

·   Interruption in instrument panel wiring harness between fuse F1 and instrument panel/body wiring harness plug X1/Ter. 12.

·   Fuse F7 defective.

·   Interruption in instrument panel wiring harness between fuse F15 and instrument panel/body wiring harness plug X1/Ter. 49

·   Instrument panel/body wiring harness plug X1 detached.

 

 

 

 

·   Interruption in body wiring harness between instrument panel/body wiring harness plug X1 and 6-pin console wiring harness plug Ter. 5.

·   Interruption in body wiring harness between instrument panel/body wiring harness plug and 9-pin console wiring harness plug Ter. 4.

·   Interruption in body wiring harness between 9-pin console wiring harness plug and door contact switch S47.

·   Driver's door contact switch S47  defective.

·   Ground connection corroded.

 

 

If nominal values are attained, window winder automatic controls S37.7 in switch S37 defective.

 

 

 

 

 

ECWW, Checking Program Test Step 4 > < ECWW, Checking Program Test Step 2