Chrysler Town and Country 2003 Owner's Manual page 299

*REAR BLOWER MOTOR INOPERATIVE —
TEST
3 Replace IPM Fuse #12.
Turn the ignition on.
Operate the blower motor in all speeds.
Start the engine and operate the ATC system in all modes and speeds.
Does the blower motor operate properly without blowing the fuse?
Yes → Refer to the wiring diagrams located in the service information to
→ Go To 4
No
4 Turn the ignition off.
Disconnect the Rear Blower Motor Power Module C1 harness connector.
Measure the resistance between ground and the Fused Rear Blower Relay Output
circuit.
Is the resistance below 10K ohms?
Yes → Repair the Fused Rear Blower Relay Output circuit for a short to
→ Go To 5
No
5 Turn the ignition off.
Replace IPM Fuse #12.
Disconnect the Rear Blower Motor Power Module C1 harness connector.
Disconnect the Rear Blower Motor Power Module C2 harness connector.
Connect a jumper wire between the Fused Rear Blower Relay Output circuit in the
Rear Blower Motor Power Module C1 harness connector and the Power Feed circuit
in the Rear Blower Motor Power Module C2 harness connector.
Connect a jumper wire between the Ground circuit in the Rear Blower Motor Power
Module C1 harness connector and the Ground circuit in the Rear Blower Motor
Power Module C2 harness connector.
Turn the ignition on.
Does the Blower Motor operate at full speed without blowing the fuse?
Yes → Replace the Rear Blower Motor Power Module in accordance with
→ Replace the Blower Motor in accordance with the Service Infor-
No
6 Ensure IPM Fuse #12 is installed.
Disconnect the Rear Blower Motor Power Module C1 harness connector.
Turn the ignition on.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Using a 12-volt test light connected to ground, back probe the Fused Rear Blower
Relay Output circuit in the Rear Blower Motor Power Module C1 harness connector.
Does the test light illuminate brightly?
Yes → Go To 7
→ Go To 13
No
AUTOMATIC TEMPERATURE CONTROL
ACTION
help isolate a possible intermittent short to ground condition.
With the DRBIII , reset the ATC after repair is complete.
Perform BODY VERIFICATION TEST - VER 1.
ground. Replace IPM Fuse #12.
With the DRBIII , reset the ATC after repair is complete.
Perform BODY VERIFICATION TEST - VER 1.
the Service Information. Replace IPM Fuse #12.
With the DRBIII , reset the ATC after repair is complete.
Perform BODY VERIFICATION TEST - VER 1.
mation. Replace IPM Fuse #12.
With the DRBIII , reset the ATC after repair is complete.
Perform BODY VERIFICATION TEST - VER 1.
Continued
275
APPLICABILITY
All
All
All
All