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Ignition Primary

NOTE: Perform SECONDARY SPARK  under IGNITION CHECKS before proceeding with test.
  1. Ensure battery has a minimum of 12.5 volts (9.5 cranking volts) available to operate cranking system. Ensure battery cable connections are clean and tight.
  2. Using an analog voltmeter, backprobe the following wires at the distributor. Touch positive lead to Tan/Yellow wire. Touch negative lead to Black/Light Blue wire.
  3. Set voltmeter to 15-volt DC scale. Crank engine. If voltmeter needle does not fluctuate between 0-5 volts, check related circuits. If necessary, replace camshaft position sensor. If camshaft position sensor is okay, but engine does not start, see TESTS W/CODES - 2.5L & 4.0L article in this section and check PCM.
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