1987-92 Service Manuals - Step 13

^ Connect a DVM between terminals "B" and "C" of IDI module harness.

^ Measure the combined resistance value of the crank sensor and crank sensor harness.

^ Resistance should be between 500 and 900 ohms.

^ Crank the engine and observe voltage (AC scale).

^ Reading should be greater than 200 mV. Are both the DVM readings within the given values?