Checking cables and terminals

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 3-Bit Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Check fuel tank pressure sensor and control module connectors and connectors 24/2 and 24/4 for loose connections. Loose connections (terminals) and contact resistance and oxidation. Contact resistance and oxidation .
Check cable between fuel tank pressure sensor terminal 2 and engine control module (ECM) #B31 via connector 24/4 terminal E5 and connector 24/2 terminal C6 for an intermittent short-circuit to ground. Short-circuit to ground, intermittent faults .
Check cable between tank pressure sensor terminal 3 and engine control module (ECM) #B15 via connector 24/4 terminal E4 and connector 24/2 terminal C5 for an intermittent short-circuit to ground. Short-circuit to ground, intermittent faults and an intermittent open-circuit. Open-circuit, intermittent faults .
Check cable between accelerometer terminal 1 and engine control module (ECM) #B1 for an intermittent short-circuit to ground. Short-circuit to ground, intermittent faults .
Check cable between air conditioning (A/C) pressure sensor terminal 3 and engine control module (ECM) #B29 for an intermittent short-circuit to ground. Short-circuit to ground, intermittent faults .

Fig 3: Identifying Connector B

Courtesy of VOLVO CARS OF NORTH AMERICA.

Continue when the fault has been remedied.

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