Grand Caravan L4-153 2.5L SOHC VIN K TBI (1988)
Fig. 4 Alternator current output test. Except front wheel drive
3.
Connect a 0-150 amp D.C. ammeter in series between alternator "B+" terminal and disconnected "B+" lead wire.
4.
Connect positive lead of a suitable voltmeter to "B+" terminal of alternator, then connect negative lead to suitable ground.
5.
Connect a suitable engine tachometer, then reconnect battery ground cable.
6.
Connect a variable carbon pile rheostat between battery terminals, ensuring carbon piles are in Open or Off position.
7.
Remove air hose between Engine Controller and air cleaner.
8.
On 1988-91 models except 1991 Front Wheel Drive vans and wagons and Jeep Cherokee, Comanche and Wrangler, ground one end of a
suitable jumper wire and probe green R3 wire. This may generate a fault code. Use caution not to ground J2 wire. Both R3 and J2 wires are
green on alternator side of wire connector. On dash side of connector, R3 wire is green, while J2 wire is blue.
Fig. 5 Alternator current output test. Front wheel drive
9.
On 1991 Front Wheel Drive vans and wagons, connect suitable jumper wire to ground and K20 (green) terminal, at rear of alternator. This may
generate a fault code. Do not connect A21 (blue) circuit to ground, as fusible link will burn.
