Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1994TAURUS V6-182 3.0L DOHC SHOREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONPINPOINT TESTSNB - IGNITION DIAGNOSTIC MONITOR -- LOW DATA RATENB - TESTING NOTES
1994 Ford Taurus V6-182 3.0L DOHC SHO
NB - Testing Notes
1994 Ford Taurus V6-182 3.0L DOHC SHOSECTION NB - Testing Notes
NOTE:
You should enter this Pinpoint Test only when you have been directed here from Diagnostic Routines.
REMEMBER:
To prevent the replacement of good components, be aware that the following non-Electronic Engine Controls (EEC) areas may be at fault:
- Ignition Control Module (ICM)
- Electronic Ignition coil pack(s)
- Spark plugs and high tension cables
Crankshaft Position (CKP) sensor
- Camshaft Position (CMP) sensor, if equipped
- Arcing of secondary ignition components
This Pinpoint Test is intended to diagnose only the following:
- Harness Circuits: Ignition Diagnostic Monitor (IDM) and Dual Plug Inhibit (DPI)
- Powertrain Control Module (PCM) (12A65O)
Description:
The IDM is an input signal to the PCM that verifies spark function based on the flyback voltage created by the ignition coil primary discharge. This signal is transmitted from the ICM to the PCM. The IDM signal consists of a single pulse for each successful ignition event. Lack of an IDM pulse is used as an indication of intermittent and/or missing spark event.
You should enter this Pinpoint Test only when you have been directed here from Diagnostic Routines.
REMEMBER:
To prevent the replacement of good components, be aware that the following non-Electronic Engine Controls (EEC) areas may be at fault:
- Ignition Control Module (ICM)
- Electronic Ignition coil pack(s)
- Spark plugs and high tension cables
Crankshaft Position (CKP) sensor
- Camshaft Position (CMP) sensor, if equipped
- Arcing of secondary ignition components
This Pinpoint Test is intended to diagnose only the following:
- Harness Circuits: Ignition Diagnostic Monitor (IDM) and Dual Plug Inhibit (DPI)
- Powertrain Control Module (PCM) (12A65O)
Description:
The IDM is an input signal to the PCM that verifies spark function based on the flyback voltage created by the ignition coil primary discharge. This signal is transmitted from the ICM to the PCM. The IDM signal consists of a single pulse for each successful ignition event. Lack of an IDM pulse is used as an indication of intermittent and/or missing spark event.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.