S80 T6 Executive L6-2.8L Turbo VIN 90 B6284T (2001)
Caution! There must not be anyone inside the passenger compartment when the battery is connected.
The collision cable runs from the SRS control module to the car-phone module (PHM) and the central electronic module (CEM). If the cable is
defective, there is a risk that the safety measures in the central electronic module (CEM) and the emergency call from the car-phone module (PHM) will
fail if the airbag system is activated.
Checking for short-circuits to ground
Check the collision sensor cable. Check for a short-circuit to ground. Measure resistance between body ground and one of the following connectors:
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car-phone module (PHM) connector terminal A17 (#17)
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central electronic module (CEM) connector terminal 5D (#B5)
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SRS control module connector terminal 30 (#2B).
The resistance between a fault free cable and body ground should be infinite.
Checking for contact resistance and open-circuits
Check the connectors for the control modules. Check for contact resistance.
Check the collision sensor cable. Check for an open-circuit. Measure the resistance between all the connectors:
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car-phone module (PHM) connector terminal A17 (#17)
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central electronic module (CEM) connector terminal 5D (#B5)
-
SRS control module connector terminal 30 (#2B).
The resistance of a fault free cable is approximately 0 ohms.
Checking for short-circuits to supply voltage
Check the collision sensor cable. Check for a short-circuit to voltage. Use a voltmeter to take readings between the battery positive terminal and one of
the following connectors:
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car-phone module (PHM) connector terminal A17 (#17)
-
central electronic module (CEM) connector terminal 5D (#B5)
-
SRS control module connector terminal 30 (#2B).
Remedy as necessary.
Other information
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To connect the breakout box to the car-phone module (PHM), See: Cellular Phone/Communications Control Module/Service and
Repair/Telephone Module/-Control Module (PHM), Changing.
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To connect the breakout box to the central electronic module (CEM), see Connecting the breakout box See: Body and Frame/Body Control
Systems/Testing and Inspection/Pinout Values and Diagnostic Parameters/Connecting the Breakout Box/Connecting the Breakout Box, Central
Electronic Module (CEM)
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To connect the breakout box to the SRS module, see Connecting the breakout box See: Restraint Systems/Air Bag Systems/Testing and
Inspection/Pinout Values and Diagnostic Parameters/Connecting the Breakout Box, Supplemental Restraint System Module (SRS).
Continue - FAULT FOUND
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