Chrysler Town and Country 2003 Owner's Manual page 544

HEATING & A/C
ACT CKT TEST PASSED, OVERCURRENT DTCS ACTIVE - MTC —
Continued
TEST
8 Turn the ignition off.
Disconnect the A/C - Heater Control C1 harness connector.
NOTE: If the Actuator Circuit Test messages, displayed on the DRBIII ,
identified which circuits are shorted together, then only measure the
resistance between those circuits. Otherwise, proceed as follows:
Measure the resistance between the Recirculation Door Driver ckt and, if applicable,
the Driver Blend Door Driver ckt, Passenger Blend Door Driver ckt, Rear Blend Door
Driver ckt, Mode Door Driver ckt, and the Rear Mode Door Driver ckt.
Measure the resistance between the Driver Blend Door Driver ckt and, if applicable,
the Passenger Blend Door Driver ckt, Rear Blend Door Driver ckt, Mode Door Driver
ckt, and the Rear Mode Door Driver ckt.
Measure the resistance between the Mode Door Driver ckt and, if applicable, the
Passenger Blend Door Driver ckt, Rear Blend Door Driver ckt, and the Rear Mode
Door Driver ckt.
If applicable, measure the resistance between the Passenger Blend Door Driver ckt
and the Rear Blend Door Driver ckt and the Rear Mode Door Driver ckt.
If applicable, measure the resistance between the Rear Blend Door Driver circuit and
the Rear Mode Door Driver circuit.
If applicable, measure the resistance between the Common Door Driver ckt and the
Rear Blend Door Driver ckt and the Rear Mode Door Driver ckt.
If applicable, measure the resistance between the Rear Common Door Driver ckt and
the Recirculation Door Driver ckt, Driver Blend Door Driver ckt, Passenger Blend
Door Driver ckt, and the Mode Door Driver ckt.
Is the resistance below 10K ohms on any of the circuits?
Yes → Repair the door driver circuits with a resistance below 10K ohms
→ Go To 9
No
9 Turn the ignition off.
Disconnect the A/C - Heater Control C1 harness connector.
Measure the resistance between the Common Door Driver ckt and, if applicable, the
Recirculation Door Driver ckt, Driver Blend Door Driver ckt, Passenger Blend Door
Driver ckt, and the Mode Door Driver ckt.
If applicable, measure the resistance between the Rear Common Door Driver ckt and
the Rear Mode Door Driver ckt and the Rear Blend Door Driver ckt.
Is the resistance below 30.0 ohms on any of the circuits?
Yes → Go To 10
→ Go To 11
No
ACTION
for a short together.
Perform BODY VERIFICATION TEST - VER 1.
520
APPLICABILITY
All
All