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CAUTION After disconnecting the negative battery cable, wait 2 minutes for the driver's/passenger's air bag system capacitor to discharge before attempting to do any work around the steering column or instrument.
Fig. 1: View of the instrument panel and fasteners — Jeep Cherokee
Fig. 2: Exploded view of the heater core assembly — Jeep Cherokee
Fig. 3: View of the heater core — Jeep Cherokee