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Home >> Ford >> 1990 >> Bronco II 4WD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Test P - Spark Timing Check >> Test P: Step 4
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Test P: Step 4

4) Check SPOUT/SAW Circuit For Continuity  Turn key off and wait 10 seconds. Install breakout box. Disconnect ECA and TFI, EDIS or DIS (pins No. 1-6) module. With DVOM set on 200-ohm scale, measure resistance between Test Pin No. 36 at breakout box and SPOUT/SAW terminal at TFI, DIS or EDIS module vehicle harness connector. If resistance is greater than 5 ohms, repair open circuit. Reconnect all components and check timing as described in step 1). If resistance is 5 ohms or less, go to next step for DIS/EDIS equipped vehicles, or step 6) for TFI vehicles.

Fig 1: View of Module Connectors
G90E13296