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Home >> Mazda >> 1997 >> MX-6 LS, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Basic Testing - 2.5L >> Ignition Checks >> Ignition Control Module
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Ignition Control Module

Check ignition coil, ECM/PCM and high-tension lead connections. Check secondary coil winding and high-tension lead resistance. Measure voltage between ground and appropriate ECM/PCM terminals. See the ECM/PCM TERMINAL IDENTIFICATION  table. If all measurements are within specification, and misfire still occurs, replace distributor or ignition coil.

ECM/PCM TERMINAL IDENTIFICATION

ECM/PCM Wire Color (1) Closed Throttle Volts WOT Volts
Blue/Orange (4F) 0 Or 5 2.5
Yellow/Black (4S) 0 .6
(1) ECM/PCM terminal number in parentheses. See PIN VOLTAGE/PID VALUE CHARTS - 2.5L article for terminal identification.
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