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*NO RESPONSE FROM SENTRY KEY REMOTE ENTRY MODULE —
Continued
TEST
5
Note: Ensure there is PCI Bus communication with other modules on the
vehicle before proceeding. If not, refer to the symptom list from the menu
and repair as necessary.
Disconnect the SKREEM harness connector.
Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
black test probes.
Connect the scope input cable to the channel one connector on the DRBIII . Attach
the red and black leads and the cable to probe adapter to the scope input cable.
With the DRBIII select Pep Module Tools.
Select lab scope.
Select Live Data.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
circuit in the SKREEM connector.
Turn the ignition on.
Observe the voltage display on the DRBIII Lab Scope.
Does the voltage pulse from 0 to approximately 7.5 volts?
Yes → Go To 6
→ Repair the PCI Bus circuit for an open.
No
6
If there are no possible causes remaining, view repair.
Repair
ACTION
Perform SKREEM VERIFICATION TEST - VER 1A.
Replace and program the Sentry Key Remote Entry Module in
accordance with the Service Information.
Perform SKREEM VERIFICATION TEST - VER 1A.
23
COMMUNICATION
APPLICABILITY
All
All
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