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Ignition primary troubleshooting, Typical dis primary wire colors – GxT Ferret 54 ENGINE DIAGNOSTIC CENTER User Manual

Page 33

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IGNITION PRIMARY TROUBLESHOOTING

Peak Amps

Build mSec.

Likely Problem

TYPICAL DIS PRIMARY WIRE COLORS

Manufacturer

Wire Color

Manufacturer

Wire Color

GM, Some 4 Cyl.

Pink

Chrysler Imports

Black/White

GM, All Others

Pink/Black

Hyundai

Black/White

Chrysler

Green/Blk or Red

Infiniti

Brown/Yellow

Ford 4 Cyl.

Blue

Lexus

Black/Orange

Ford, All Others

Red/Green

Mazda

Red/Lt.Green

Toyota

Black/Orange

Otherwise, consult the car’s service manual wiring diagram.

No Coils with Amps

All Coils Low Amps

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One Coil has Low or
No Amps

Amps are Normal

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Long or Intermittent
Build Time

One Coil Build Time
is Long

---

One Coil Build Time
is Short.

Power or Ground
Connection, Crank
Signal is Missing,
Or Module is Bad

Bad Power or Ground
Connection

High Resistance in
Coil Primary Circuit

Bad Driver Module or
High Resistance in
Coil Primary Circuit

Coil may have
shorted winding or
output