Chrysler Town, Dodge Caravan. Manual — part 793
TEST
ACTION
APPLICABILITY
6
Turn the ignition off.
Disconnect the Body Control Module C3 harness connector.
Disconnect the Right Sliding Door Control Module C2 harness connector.
Measure the resistance between ground and the Right Sliding Door Wake Up Signal
circuit.
Is the resistance below 100.0 ohms?
All
Yes
→ Repair the Right Sliding Door Wake Up Signal wire for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 7
7
If there are no possible causes remaining, view repair.
All
Repair
Replace the Right Sliding Door Control Module in accordance with
the service information.
Perform BODY VERIFICATION TEST - VER 1.
8
Turn the ignition off.
Disconnect the Body Control Module C3 harness connector.
Disconnect the Right Sliding Door Control Module C2 harness connector.
Measure the resistance of the Right Sliding Door Wake Up Signal circuit between the
BCM C3 connector and the Right Sliding Door Control Module C2 connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Replace the Body Control Module in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Right Sliding Door Wake Up Signal wire for an open.
Perform BODY VERIFICATION TEST - VER 1.
408
COMMUNICATION
*NO RESPONSE FROM RIGHT SLIDING DOOR CONTROL MODULE —
Continued
Symptom:
*NO RESPONSE FROM SENTRY KEY IMMOBILIZER MODULE
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE BCM
GROUND CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
FUSED B(+) CIRCUIT OPEN
OPEN PCI BUS CIRCUIT
SENTRY KEY IMMOBILIZER MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, enter Body then Body Computer.
Was the DRB able to I/D or communicate with the BCM?
All
Yes
→ Go To 2
No
→ Refer to the symptom list for problems related to no communica-
tion with the BCM.
Perform SKIS VERIFICATION.
2
Turn the ignition off.
Disconnect the SKIM harness connector.
Using a 12-volt test light connected to 12-volts, probe the Ground circuit.
Is the test light illuminated?
All
Yes
→ Go To 3
No
→ Repair the ground circuit for an open.
Perform SKIS VERIFICATION.
3
Turn the ignition off.
Disconnect the SKIM harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the Fused Ignition Switch
Output circuit.
Is the test light illuminated?
All
Yes
→ Go To 4
No
→ Repair the Fused Ignition Switch Output circuit for an open.
Perform SKIS VERIFICATION.
4
Turn the ignition off.
Disconnect the SKIM harness connector.
Using a 12-volt test light connected to ground, probe the Fused B(+) circuit.
Is the test light illuminated?
All
Yes
→ Go To 5
No
→ Repair the Fused B+ circuit for an open.
Perform SKIS VERIFICATION.
409
COMMUNICATION
TEST
ACTION
APPLICABILITY
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 SKIM 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
t. Attach
the red and black leads and the cable to probe adapter to the scope input cable.
With the DRBIII
t 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. Set Probe to x10.
Press F2 again when complete.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
circuit in the SKIM connector.
Turn the ignition on.
Observe the voltage display on the DRBIII
t Lab Scope.
Does the voltage pulse from 0 to approximately 7.5 volts?
All
Yes
→ Go To 6
No
→ Repair the PCI Bus circuit for an open.
Perform SKIS VERIFICATION.
6
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Sentry Key Immobilizer Module in
accordance with the Service Information.
Perform SKIS VERIFICATION.
410
COMMUNICATION
*NO RESPONSE FROM SENTRY KEY IMMOBILIZER MODULE —
Continued
Symptom:
*NO RESPONSE FROM THATCHAM ALARM MODULE
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE BCM
GROUND CIRCUIT OPEN
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
OPEN PCI BUS CIRCUIT
THATCHAM ALARM MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, enter Body then Body Computer.
Was the DRB able to I/D or communicate with the BCM?
All
Yes
→ Go To 2
No
→ Refer to the symptom list for problems related to no communica-
tion with the BCM.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Disconnect the RKE Module 6-way harness connector.
Using a 12-volt test light connected to 12-volts, probe the ground circuit.
Is the test light illuminated?
All
Yes
→ Go To 3
No
→ Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the ignition off.
Disconnect the Thatcham Alarm Module C1 harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the Fused Ignition Switch
Output circuit.
Is the test light illuminated?
All
Yes
→ Go To 4
No
→ Repair the Fused Ignition Switch Output circuit for an open or
short.
Perform BODY VERIFICATION TEST - VER 1.
411
COMMUNICATION
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