Amigo & Rodeo (2.2L Engine)
- Disconnect battery cables. Disconnect generator wiring harness connector terminal "B+" (White wire) from generator. Set ammeter to 100 amp setting and connect between generator terminal "B+" and generator connector terminal "B+". (Scheme 8)
- Connect carbon pile tester to battery. (Scheme 8) Connect tachometer to engine. Connect oscilloscope to generator following manufacturer's instructions. Reconnect battery cables.
- Start engine and allow it to idle. Document generator current output at various engine speeds. Adjust carbon pile tester to demand maximum output from generator. See «GENERATOR SPECIFICATIONS»(ref-4243-S08869321942000061600000) table.
- Monitor waveforms on oscilloscope. Waveforms should vary between 5 to 7 amps. If minimum current is not output from generator or oscilloscope waveforms are irregular, overhaul or replace generator. See «OVERHAUL»(ref-4243-S10806569152000061600000).
Scheme 8
Amigo & Rodeo (3.2L Engine), Trooper
- Disconnect generator connector. Turn ignition switch to ON position. Measure voltage between ground and generator connector terminal "L" (White/Blue wire; White/Green wire on VehiCROSS). Also measure voltage at generator connector terminal "IG" (Black/Yellow wire). If battery voltage is indicated, go to next step. If battery voltage is not indicated, check for blown METER or ENGINE IG. fuse in dash fuse box. If fuses are okay, check for open in Black/Yellow wire between generator connector terminal "IG" and dash fuse box, White/Blue wire between generator connector terminal "L" and instrument panel, or Yellow wire between instrument panel and dash fuse box. See «WIRING DIAGRAMS»(ref-4243-S38033623822000061600000) . Repair if necessary.
- Reconnect generator connector and start engine. Ensure ALL accessories and equipment are off. Use DVOM and measure battery voltage while engine is idling. If reading is greater than 16 volts, replace generator. Connect ammeter between output terminal wire and output terminal of generator. See «WIRING DIAGRAMS»(ref-4243-S38033623822000061600000) . Turn on headlights and other accessories. Amperage must not drop below 15 amps and voltage must not drop below 13 volts. If either amperage or voltage drops below specifications, replace generator.
| Application | Rated Output (Amps) |
|---|---|
| Amigo | 60 |
| Rodeo (2.2L Engine) | (1) |
| Rodeo (3.2L Engine) & Passport | 90 |
| Trooper | 75 |
| VehiCROSS | 80 |
| (1) Information is not available from manufacturer. | |
| (1) | Information is not available from manufacturer. |
GENERATOR SPECIFICATIONS
Amigo, Rodeo (2.2L Engine), Trooper & VehiCROSS
Set DVOM to x100 ohm range and check for continuity between terminals "B" and "F". (Scheme 9) Reverse leads to terminals on DVOM. Continuity should only be indicated in one direction. If continuity is indicated in both directions or in neither direction, replace IC voltage regulator. See OVERHAUL.
Scheme 9
Rodeo & Passport (3.2L Engine)
Note. One 10-ohm 3-watt resistor, one 0 to 300-ohm 12-watt variable resistor, two 12-volt batteries, and a DC voltmeter are required to perform this test.
- Perform voltage measurement "V1". (Scheme 10) Voltage reading across "BAT 1" terminals should be between 10-13 volts. If so, battery is normal.
- Perform voltage measurement "V3". Voltage reading across both "BAT 1" and "BAT 2" terminals should be between 20-26 volts. If so, both batteries are normal.
- Gradually increase resistance of variable resistor from zero. Perform voltage measurement "V2". (Scheme 10) At this time, voltage at "V1" should be changing. If it is not, voltage regulator is faulty and must be replaced.
- Perform voltage measurement "V4" (voltage across variable resistor center tap and terminal "E" with resistance held constant). Measured voltage should be between 14.1-14.7 volts. If not, IC regulator is defective and must be replaced.
Scheme 10
STATOR COIL
- Using an ohmmeter, check continuity across stator coil leads. If continuity does not exist, replace stator coils. See «OVERHAUL»(ref-4243-S10806569152000061600000) .
- Measure resistance across stator coil, reading should be about .07 ohms at 68°F (20°C). If reading is not as specified, replace stator. See «OVERHAUL»(ref-4243-S10806569152000061600000) .
- Connect ohmmeter between stator core and each stator coil lead. If continuity exists, replace stator coil. See «OVERHAUL»(ref-4243-S10806569152000061600000) .