Файл: 92FWD_8F.pdf

DESCRIPTION

For operation of the factory installed standard and optional radios and the optional compact disc player, refer to the Sound Systems Operating Instructions Manual supplied with the vehicle.

All vehicles are equipped with an Ignition-Off Draw Connector which, is used when the vehicles are originally shipped from the factory. This connector which, is located near the battery, helps to prevent battery discharge during storage. For specific connector type and location, refer to Group 8W, Wiring Diagrams.

This connector is included in the radio memory circuitry and should be checked if the memory of time or radio station programming is inoperative.

INTERFERENCE ELIMINATION

Some components are used on vehicles equipped with a radio capacitor, to suppress radio frequency interference/static.

Capacitors are mounted in various locations, on the alternator either internal or external, internal to the instrument cluster, and internal to the windshield wiper motor.

Ground straps are mounted from radio chassis to cowl, engine to cowl, across engine mount on right hand side. On vehicles with air conditioning there is a strap from evaporator valve to cowl. These ground straps should be securely tightened to assure good metal to metal contact. Ground straps conduct very small high frequency electrical signals to ground and require clean large surface area contact.

Radio resistance type spark plug cables in the high tension circuit of the ignition system complete the interference suppression (Fig. 1).

Fig. 1 Resistance Type Spark Plug Cables

If radio noises are evident, be sure the capacitor lead wires are making good contact on their respective terminals and are securely mounted. Faulty or deteriorated spark plug wires should be replaced.

TEST

Whenever a radio malfunction occurs, first verify that the radio wire harness is properly connected to all connectors before starting normal diagnosis and repair procedures. Refer to Radio Diagnosis Chart (Fig. 2) and/or Radio Connector Circuit Chart (Fig. 3).

AA BODY

REMOVAL

(1)Remove center bezel by pulling straight back disengaging the five clips.

(2)Remove radio mounting screws (Fig. 4)

(3)Pull radio from panel and disconnect wiring, ground strap and antenna lead from radio.

(4)Remove radio.

INSTALLATION

(1)Connect wiring, ground strap and antenna lead to radio.

(2)Position radio into panel, install mounting screws and tighten securely.

(3)Install center bezel.

AG AND AJ BODIES

REMOVAL

(1)Remove center instrument panel bezel by pulling toward the rear of the car (Fig. 5).

(2)Remove two screws attaching radio to console.

(3)Pull radio through front face of console, disconnect wiring harness, antenna lead, and ground strap.

INSTALLATION

(1)Position radio so that the wiring harness, antenna lead, and ground strap can be connected.

(2)Install two screws attaching radio to console.

(3)Install center bezel by pushing in until clips engage.

AC AND AY BODIES

REMOVAL

(1)Remove four cluster bezel screws (Fig. 6).

(2)Remove two radio attaching screws.

(3)Disconnect wiring connectors and antenna

cable.

(4)Remove screw attaching ground strap.

INSTALLATION

(1)Secure ground strap with attaching screw.

(2)Connect wiring and antenna cable.

(3)Install radio and cluster bezel.

AP BODY REPLACEMENT

(1)Remove center module bezel (Fig. 7).

(2)Remove lower center module cover if equipped with base console.

(3)Remove right console side wall if equipped with full console assembly.

(4)Remove two mounting screws on the radio and pull out of instrument panel (Fig. 8).

(5)Disconnect wiring and antenna cable.

(6)Remove ground strap from radio.

(7)For installation reverse above procedures.

Fig. 9 Antenna Test Points

(2)No continuity should be observed or a very high resistance of several megohms between the ground shell of the connector and radio end pin.

(3)Continuity should be observed between the ground shell of the connector and the mounting hardware on the vehicle fender.

REMOVAL

AA and AC bodies have a short cable that plugs into the panel harness cable.

To remove antenna, the radio must be removed first. See radio removal. Except AA and AC bodies.

(1) Unplug antenna lead from radio receiver.

Fig. 11 Antenna Mast Removal and Installation

(2)Remove antenna mast by unscrewing mast from antenna body (Fig. 11).

(3)Remove cap nut with Antenna Nut Wrench C-4816 (Fig. 12).

(4)Remove antenna adapter and gasket (Fig. 13).

(5)Unfasten three push pins from the rear of the plastic inner fender shield and bend the shield away to gain access to the antenna body.

(6)From under fender remove antenna lead and body assembly (Fig. 13).