DaimlerChrysler Jeep Grand Cherokee 2002, Service Manual

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TEST ACTION APPLICABILITY
7 Disconnect the negative battery cable.
Measure the resistance between ground and the PCI Bus circuit at the Diagnostic
Junction Port tester that previously measured below 100.0 ohms.
Disconnect the module harness connector(s).
NOTE: If the problem occurred on a bus circuit that has more than one
module on the same circuit, observe the ohmmeter while disconnecting
each module connector one at a time.
Is the resistance below 100.0 ohms with the module(s) disconnected? All
Yes
→
Repair the PCI Bus circuit that measured below 100.0 ohms for a
short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Replace the module that when disconnected the short to ground
was eliminated.
Perform BODY VERIFICATION TEST - VER 1.
8 Turn the ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wire harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
Were any problems found? All
Yes
→
Repair wiring harness/connectors as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→
Test Complete.
17
COMMUNICATION
*PCI BUS COMMUNICATION FAILURE —
Continued
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