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Home >> Volvo >> 2003 >> C70 2.3 53, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 50 (Immobilizer - General Diagnostics And Tests (Coupe)) >> Function Tests. Immobilizer 3 (1998) >> Checking control module communication >> Checking Control Module >> Checking for open-circuit

Checking for open-circuit

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.

Check circuit between fuse number 11C/4 and battery positive terminal for an open-circuit according to Open-circuit, permanent faults

Fig 1: Identifying Ohms Display
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.

Select "Continue" when the fault has been repaired. 



Check cable between fuse 11C/4 and control module terminal #5 for an open-circuit according to Open-circuit, permanent faults .

Fig 1: Identifying Control Module Connector Terminals
GLL125064Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Ohms Display
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.

Select "Continue" when the fault has been repaired. 



Check the circuit between battery positive terminal and fuse 11C/8 for an open-circuit according to Open-circuit, permanent faults .

Fig 1: Identifying Ohms Display
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.

Select "Continue" when the fault has been repaired. 



Check cable between fuse 11C/8 and control module terminal #6 for an open-circuit according to Open-circuit, permanent faults .

Fig 1: Identifying Control Module Connector Terminals
GLL125064Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Ohms Display
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.

Select "Continue" when the fault has been repaired. 



Check the cable between control module terminal #8 and ground terminals 31/51 and ground terminal itself for an open-circuit according to Open-circuit, permanent faults .

Fig 1: Identifying Control Module Connector Terminals
GLL125064Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Ohms Display
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.

Select "Continue" when the fault has been repaired.