Grand Cherokee 4WD V6-3.0L DSL Turbo (2008)
Auxiliary Heater Element: Service and Repair
Removal
REMOVAL
WARNING: Refer to the applicable warnings and cautions for this system before performing the following operation See: Service
Precautions/Warning and See: Service Precautions/Caution. Failure to follow the warnings and cautions could result in possible personal
injury or death.
WARNING: Disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or
service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before
performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to take the proper precautions could
result in accidental airbag deployment and possible personal injury or death.
NOTE: PTC heater shown removed from distribution housing for clarity.
1. Disconnect and isolate the negative battery cable.
2. Remove the instrument panel See: Body and Frame/Interior Moulding / Trim/Dashboard / Instrument Panel/Service and Repair/Instrument Panel -
Removal.
NOTE: To disconnect the wire harness connector from the heater unit, pull upward on the connector lock while pulling the connector
away from the heater unit.
3. Disengage the wire connector lock (1) and disconnect the wire harness connector (2) from the positive temperature coefficient (PTC) heater unit
(3).
NOTE: LHD model shown. RHD model similar.
4. Remove the two screws (1) that secure the PTC heater unit (2) to the driver side of the HVAC air distribution housing (3).
5. Carefully remove the PTC heater unit from the air distribution housing by pulling it straight out of the housing.
