C 280 (202.029) V6-2.8L (112.920) (1999)
Crash Control Module: Testing and Inspection
Checking Crash Shut-Off Relay (Model 170 w/111.943/973)
Component Identification
1
Disconnect connector on crash shut-off relay.
2
Switch on ignition.
Test step 1
Connect multimeter to pin 3 (c. 15) on crash shut-off relay connector and battery ground W1O. Nominal value: 11-14V
-
Nominal value not reached:
Eliminate fault in lead c. 15.
-
Nominal value reached:
Perform test step 2.
Test step 2
Connect multimeter to pin 2 (c. 31) of crash shut-off relay connector and positive pole of battery. Nominal value: 11-14V
-
Nominal value not reached:
Eliminate fault in lead c 31.
-
Nominal value reached:
Replace crash shut-off relay.
End of test.