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Ignition diagnostic harness voltage chart table for 3.0L SHO and…
Scanned service-manual page listing typical EI (Low Data Rate) distributorless ignition diagnostic-harness voltage readings, with a pin-to-pin table giving key-on/engine-off, cranking and idling volts for pins such as C1C J12 (3.0 SHO), C2C J14 (3.0L SHO), ICM PWR J5, PIP CKP J35 and COIL PWR J7 measured against IGN GND J2. A note warns not to use a true-RMS AC voltmeter like the Fluke 8060a or 87.
The following voltage readings are typica Do not use a "true RMS" type A/C voltme for a normal vehic er such as the Flu e with El (Low Data Rate) Diagnostic e 8060a or 87. Measure Between PJns Flrst PJn Second PJn Key On Englne Cranklng Englne Idllng Engme Off (volts) (volts) (volts) C1c J4 (3.8L sc) IGN GND J2 14.5 DC 1.2 AC 1.6 AC C1c J12 (3.0 SHO) IGN GND J2 14.5 DC 1.2 AC 1.6 AC C2c J12 (3.8L SE) IGN GND J2 14.5 DC 1.2 AC 1.6 AC C2c J14 (3.0L IGN GND J2 14.5 DC 1.2 AC 1.6 AC sum C3c J13 IGN GND J2 14.5 DC 1.2 AC 1.6 AC C1D J3 IGN GND J2 14.5 DC 1.2 AC 1.6 AC C2D J18 IGN GND J2 14.5 DC 1.2 AC 1.6 AC C3D J6 IGN GND J2 14.5 DC 1.2 AC 1.6 AC ICM PWR J5 IGN GND J2 14.6 DC 13.0 DC 14.8 DC CID 1 J51 IGN GND J2 11.8/0.2 DC 4.0 AC 7.0 AC CMP CKP J21 IGN GND J2 11.8/0.2 DC 4.0 AC 7.0 AC PIP ICM J32 IGN GND J2 11.8/0.2 DC 5.0 AC 6.8 AC PIP CKP J35 IGN GND J2 11.8/0.2 DC 5.0 AC 6.8 AC PIP PCM J33 IGN GND J2 11.8/0.2 DC 5.0 AC 6.8 AC SPOUTI J36 IGN GND J2 11.8/ DC 0.1 AC 3.0 AC IDMI J4 IGN GND J2 0.2 DC 4.0 AC 4.6 AC COIL PWR J7 IGN GND J2 14.7 DC 13.0 DC 14.8 DC CMP PWR J41 IGN GND J2 14.7 DC 13.0 DC 14.8 DC CKP PWR J56 IGN GND J2 14.7 DC 13.0 DC 14.8 DC RESET J54 IGN GND J2 0.2 DC 13.0 DC 0.2 DC 1arness attached.
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