Chrysler Town and Country 2003 Owner's Manual page 307

A. CABIN HEATER PRE-TEST —
TEST
1 WARNING: DO NOT OPERATE THE DCHA IN AN ENCLOSED AREA SUCH
AS A GARAGE THAT DOES NOT HAVE EXHAUST VENTILATION FACILI-
TIES. ALWAYS VENT THE DCHA's EXHAUST WHEN OPERATING THE
DCHA. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN
PERSONAL INJURY OR DEATH.
CAUTION: When using a powered exhaust ventilation system, do not attach
the exhaust ventilation hose directly to the DCHA exhaust pipe. Too much
suction can prevent DCHA operation.
When using a powered exhaust ventilation system, affix the ventilation hose to the
DCHA exhaust pipe or to the vehicle in such a manor that the end of the ventilation
hose remains approximately three inches away from the end of the DCHA exhaust
pipe.
When using a non-powered exhaust ventilation system, affix the ventilation hose
directly to the DCHA exhaust pipe.
Turn the ignition on.
With the DRBIII , attempt to communicate with the Cabin Heater Module.
Does the DRBIII display: No Response From Cabin Heater Module?
Yes → Refer to Communication for the related symptom.
→ Go To 2
No
2 WARNING: DO NOT OPERATE THE DCHA IN AN ENCLOSED AREA SUCH
AS A GARAGE THAT DOES NOT HAVE EXHAUST VENTILATION FACILI-
TIES. ALWAYS VENT THE DCHA's EXHAUST WHEN OPERATING THE
DCHA. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN
PERSONAL INJURY OR DEATH.
Turn the ignition on.
With the DRBIII , read Cabin Heater DTCs.
Is DTC B1813 Heater In Lockout Mode present?
Yes → Go To 3
→ Go To 4
No
3 WARNING: DO NOT OPERATE THE DCHA IN AN ENCLOSED AREA SUCH
AS A GARAGE THAT DOES NOT HAVE EXHAUST VENTILATION FACILI-
TIES. ALWAYS VENT THE DCHA's EXHAUST WHEN OPERATING THE
DCHA. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN
PERSONAL INJURY OR DEATH.
Start the engine.
Allow the engine to idle.
Turn the ATC's or MTC's Power switch on.
Turn the Blower control to the high speed position.
On MTC, set the Blend control to the max heat position.
On ATC, set the Driver temperature control to HI (max heat).
Remove Cabin Heater Fuse #15 from the IPM for a minimum of five seconds, then
reinstall the fuse. The DCHA may attempt to start.
Turn the Blower control off and turn the ATC's or MTC's Power switch off.
Turn the engine off.
View repair
Repair
Continued
ACTION
Perform CABIN HEATER VERIFICATION TEST - VER 1.
Go To 4
283
CABIN HEATER
APPLICABILITY
All
All
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