Isuzu — Heater Unit Removal
Maintenance
From a Isuzu service manual — check it applies to your exact model before use.
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Before you start
- Be careful not to make any improper connection of ECM/control unit connectors.
Procedure
- Disconnect battery ground cable; drain engine coolant; discharge and recover refrigerant (W/A/C).
- Remove instrument panel assembly (refer to Section 10 BODY).
- Disconnect water hoses at heater unit.
- Disconnect resistor connector.
- Remove duct and evaporator assembly (A/C only).
- Remove instrument panel center bracket, rear heater duct, heater unit, lap vent nozzle, center ventilation lower duct.
- Install in reverse order; adjust control lever assembly cables; ensure proper seal without gaps.
Source: Isuzu service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.