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Home >> Volvo >> 2003 >> C70 2.3 53, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 85 (Immobilizer Module (IMM) And Guard Lock And Alarm (GLA) - Diagnostic Trouble Codes (DTC) (Coupe)) >> GLA-521: Central Locking Switch. Signal Too Low (1999-2002) >> Signal too low >> Checking cables

Checking cables

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Ignition Switch OFF Position
GLL101045Courtesy of VOLVO CARS OF NORTH AMERICA.

Check the cables between control module #A18 and driver's door central locking switch #C2, between control module #4 and driver's door central locking switch #C2, between control module #A16 and driver's door central locking switch #C4, between control module #A16 and passenger door central locking switch #C3 and between control module #A4 and passenger door central locking switch #C5 for a short-circuit to ground according to Short-circuit to ground, permanent faults .

Other information: 

Fig 2: Identifying Ohms Display
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.