Workshop Manuals Factory service & repair Alfa Romeo
Alfa Romeo 145/146 Electrical System Diagnosis Manual, Volume 3 (1994-2001)02 · 146 electrical system diagnosis
02 · Diagnostics

Manual diagnosis (page 4 of 9)

Make
Alfa Romeo
Model
145/146 Electrical System Diagnosis Manual, Volume 3
Year
1994–2001
Section
Anti Theft device
146 electrical system diagnosisManual diagnosis · page 4 of 9
CHECK LH FRONT DOOR CONTACT (P11)TEST D
TEST PROCEDURERESULTCORRECTIVE ACTION
D1CHECK DOOR LOCKING DEVICE
– Check that the door locking device is working properly, with regard to the LH front door		OKCarry out step D2
NOT OKFollow the instructions given in FAULT-FINDING of the "DOOR LOCKING DEVICE" section
D2CHECK EARTH
– With the door open, check for 0 V (earth at pin B8 of the anti-theft control unit N45		OKChange the control unit N45
NOT OKRestore the wiring between pin B8 of control unit N45 and the door lock P11
CHECK RH REAR DOOR CONTACT (P12)TEST E
TEST PROCEDURERESULTCORRECTIVE ACTION
E1CHECK DOOR LOCKING DEVICE
– Check that the door locking device is working properly, with regard to the rear RHdoor		OKCarry out step E2
NOT OKFollow the instructions in FAULT-FINDING in the section "DOOR LOCKING SYSTEM"
E2CHECK EARTH
– With the door open, check for 0 V (earth at pin B15 of anti- theft control unit N45		OKChange the control unit N45
NOT OKRestore the wiring between pin B15 of control unit N45 and door lock P12

Parts & tools for this job For 1994 Alfa Romeo 145/146

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.