Removal/Replacement

CAUTION:
- All SRS electrical wiring harnesses are covered with yellow outer insulation.
- Before disconnecting the SRS wire harness, install the short connector(s) on the airbag(s) (see page 23.294).
- Replace the entire affected SRS harness assembly if it has an open circuit or damaged wiring.

SRS Main Harness Connector Location:

NOTE: The radio may have a coded theft protection circuit. Be sure to get the customer's code number before:
- Disconnecting the battery.
- Removing the No. 43 (10 A) fuse in the under-hood fuse/relay box.
- Removing the radio.

After service, reconnect power to the radio and turn it on. When the word "CODE" is displayed, enter the customer's 5-digit code to restore radio operation.

1. When the engine is cool, drain engine coolant from the radiator, refer to Cooling System.
- Do not remove the radiator cap when the engine is hot; the engine coolant is under pressure and could severely scald you.
- Keep hands away from the radiator fan. The fan may start automatically without warning and run for up to 15 minutes even after the engine is turned off.

Disconnecting The Heater Cable From The Heater Valve:

2. Snap open the cable clamp and disconnect the heater valve cable from the heater valve.

Disconnecting Heater Hoses:

3. Disconnect the heater hoses at the heater.

CAUTION: Engine coolant will damage paint. Quickly rinse any spilled engine coolant from painted surfaces.

NOTE: Engine coolant will run out when the hoses are disconnected, drain it into a clean drip pan.

Heater Mounting Nuts:

4. Remove the two heater unit mounting nuts from the engine compartment side.
5. Remove the dashboard.
6. Remove the heater duct, refer to Blower Unit/Removal/Replacement or Air Conditioning/Service and Repair/Evaporator.

Mounting Bolts And Heater Unit Removal:

7. Remove the two mounting bolts and heater unit.
8. Install in the reverse order of removal, and:
- Do not interchange the inlet and outlet hoses.
- Loosen the bleed bolt on the engine and refill the radiator and reservoir tank with the proper engine coolant mixture, refer to Cooling System. Tighten the bleed bolt when all the trapped air has escaped and engine coolant begins to flow from it, refer to Cooling System.
- Connect all cables and make sure they are properly adjusted, refer to Adjustments/Cables.