V50 L5-2.4L VIN 39 B5244S7 (2005)
Global Positioning System Module: Component Tests and General Diagnostics
Checking the supply voltage/ground terminal
Checking the power supply and ground terminals
Power supply, global positioning system module (GPS)
The global positioning system module (GPS) is powered via a power input on the control module.
1. The power input terminal #1 (#B1) is powered via a fuse from the central electronic module (CEM). It will not be possible to activate the global
positioning system module (GPS) if there is an open-circuit.
Checking the power supply
Check the power supply cable from the battery to the central electronic module (CEM) and from the central electronic module (CEM) to global
positioning system module (GPS) terminal #1 (#B1). Check for an open-circuit. Check for loose connections. Check for contact resistance. Check for
oxidation. Check the fuse. The voltage must be approximately battery voltage when the ignition is on.
Ground terminal, global positioning system module (GPS)
The global positioning system module (GPS) has a ground input. The ground input from the control module is connected via a ground lead to the ground
terminal in the car body. See the relevant wiring diagram for further information about ground terminals.
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Ground input terminal 1 (#B1) is power ground and is connected to the ground terminal in the car body.
Checking the ground terminal
Check the ground lead between global positioning system module (GPS) (#B1) and the ground terminal. Check for an open-circuit. Check for loose
connections. Check for contact resistance. Check for oxidation. With the ignition on, the drop in voltage between the ground connection for the media
player module (MPM) and the ground terminal must not be greater than 0.5 V.
Remedy as necessary.
Other information
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Signal specification See: Pinout Values and Diagnostic Parameters
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See the relevant wiring diagram for information about circuit and ground terminals in the bodywork
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Checking wiring and terminals See: Testing and Inspection/Component Tests and General Diagnostics/Checking Wiring and Terminals
