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Home >> Volvo >> 2003 >> C70 2.3 53, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Media, Communication And Navigation, Control Modules, Switches - Symptom Related Diagnostic Procedures (Coupe)) >> Checking Back-Up (Reversing) Lamp Switch/Gear-Shift Position Sensor (1999-2002) >> Checking back-up (reversing) lamp switch/gear-shift position sensor signal >> Checking reverse signal >> Check, connectors and cable

Check, connectors and cable

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 the RTI control module and back-up (reversing) light switch (cars with automatic transmission: gear-shift position sensor) connectors for contact resistance and oxidation according to Contact resistance and oxidation .

check cable between the control module #B11 and back-up (reversing) light switch terminal 2 (for cars with automatic transmission: gear-shift position sensor terminal 5) for an open-circuit according to. Open-circuit, permanent faults , a short-circuit to ground according to Short-circuit to ground, permanent faults , and a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

Remedy as necessary.

Other information: 

Fig 1: Identifying Connector Terminals
GLL127470Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Ohmmeter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.