Description & Operation

WARNING: Vehicles are equipped with air bag supplemental restraint system. Before attempting any repairs involving steering column, instrument panel or related components, see SIR DISABLING AND ENABLING ZONES in SIR.

CAUTION: When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle.

The AD230 generator has high amperage output. The AD230 has an outside stator lamination diameter of 130 mm. Generator includes a delta stator, rectifier bridge, and rotor with slip rings and brushes. A built-in regulator incorporates fault detection circuitry. A conventional pulley and dual internal fans are used to cool slip ring end frame, rectifier bridge and regulator.

The generator operates with 3 wire connections and a ground path through the mounting bracket. The first connection terminal "D" is the BAT (output) terminal. This terminal must be connected to the battery during operation. The second connection terminal "B" is connected from generator internal regulator lamp driver to Powertrain Control Module (PCM). This circuit monitors and controls generator operation. The PCM controls charge indicator light function. The third connection terminal "C" is connected from generator to PCM. The PCM also monitors this circuit.

Regulated voltage varies with temperature. System limits voltage by controlling rotor field current while field current is on. Regulator switches rotor field current on and off at a fixed frequency of 400 cycles per second to help control radio noise. By varying overall on/off time, correct average field current for proper system voltage control is obtained. At high speeds, with lower electrical loads, on-time may be 10 percent. At low speeds, with higher electrical loads, on-time may be as much as 90 percent. See GENERATOR SPECIFICATIONS .