Vauxhall Workshop Service and Repair Manuals > Astra H > General Vehicle Information | Diagnostic Information and Procedures | Diagnostic Procedures | Power Supply and Communication | C-xx Fault Isolation Procedures

C-019 - No Communication with SLM

Test

Work Order Description

Nominal Value

T001

Check: Interruption of Voltage Supply Circuit

Ignition OFF
All consumers turned off
Disconnect wiring harness connector from:
A1_S22A Control Unit - Selector Lever
(Wiring Harness Connector XC79 )
&
Diagnostic tester
Ignition ON
Measure voltage between the following terminals:
A1_S22A Control Unit - Selector Lever
Wiring harness connector (wiring harness side) terminal 2 (XC79)
&
Ground

greater than 11 V

Voltage Measurement

Current Value:

Yes:

No:

T002

Check: Interruption of Voltage Supply Circuit

greater than 11 V

Voltage Measurement

Current Value:

Yes:

No:

Result	Cause Of Fault
E001	Result: Defective Component
	Circuit interruption between: A1_S22A Control Unit - Selector Lever Wiring harness connector (wiring harness side) terminal 12 (XC79) & A63 Control Unit - Airbag Wiring harness connector (wiring harness side) terminal 36 (XC17) or Defective component: A1_S22A Control Unit - Selector Lever Important: Reset the concerned control unit with the diagnostic tester before replacing it. In order to do that, call up the "RESET" function from the PROGRAMMING menu of the current system on the diagnostic tester.

E002	Result: Interruption
	Circuit interruption between: A1_S22A Control Unit - Selector Lever Wiring harness connector (wiring harness side) terminal 3 (XC79) & Ground

E003	Result: Interruption
	Circuit interruption between: A1_S22A Control Unit - Selector Lever Wiring harness connector (wiring harness side) terminal 2 (XC79) & X125 Underhood Electronic Module Socket Terminal 19 (XE3) or Defective component: X125 Underhood Electronic Module Important: Reset the concerned control unit with the diagnostic tester before replacing it. In order to do that, call up the "RESET" function from the PROGRAMMING menu of the current system on the diagnostic tester.