Jeep Scrambler/CJ 1977-82 American Motors Solid State Ignition (SSI) System
COIL TEST
See Figure 1
1. Check the coil for cracks, carbon tracks, etc., and replace as necessary.
2. Connect an ohmmeter across the coil + and - terminals, with the coil connector removed. If 1.13-1.23? @ 75°F (24°C), the coil is okay. If not, replace it.
CONTROL UNIT AND SENSOR TEST
1. With the ignition On, remove the coil high tension wire from the distributor cap and hold 1/2 in. (13mm) from ground with insulated pliers. Disconnect the 4-wire connector at the control unit. If a spark occurs (normal), go to Step 2. If not, go to Step 5.
2. Connect an ohmmeter to D2 and D3. If the resistance is 400-800? (normal), go to Step 6. If not, go to Step 3.
3. Disconnect and reconnect the 3-wire connector at distributor. If the reading is now 400-800?, go to Step 6. If not, disconnect the 3-wire connector and go to Step 4.
4. Connect the ohmmeter across B2 and B3. If 300-800? repair the harness between the 3-wire and 4-wire connectors. If not, replace the sensor.
5. Connect the ohmmeter between D1 and the battery negative terminal. If the reading is 0 (0.002 or less), go to Step 2. If above 0.002?, there is a bad ground in the cable or at the distributor. Repair the ground and retest. Download File PDF
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