Equipment Hookup
- Position proper Distributor Ignition (DI) overlay onto tester.
- Select and install proper program cartridge into tester cartridge slot.
- Select and connect proper DI harness adapter onto tester.
- Ensure WIGGLE SWITCH test switch is off.
- Disconnect Ignition Control Module (ICM) connector and plug connector into male connector of tester. Plug female connector of tester into ICM.
- Perform Tester Self-Test Turn ignition on. Press tester RESET button. Tester will perform a self-test every time tester is reset or powered-up. All LEDs should light and a beep should be heard. If tester fails to perform self-test and ICM PWR LED is off, go to next step. If tester passes self-test, go to step 3).
- Self-Test Failure Turn ignition off. Disconnect tester from vehicle. Connect a jumper wire between ICM PWR port of tester and positive battery terminal. Connect another jumper wire between IGN GND port of tester and negative battery terminal. If tester performs self-test, reconnect tester to vehicle and go to PINPOINT TEST N. If any LEDs DO NOT light or tester does not beep, tester is defective.
- Attempt To Recreate Fault Turn ignition on. If any LEDs turn on, perform appropriate PINPOINT TEST. See DIAGNOSTICS BY CODE OR SYMPTOM table. If no LEDs turn on, crank engine for 5-10 seconds or start engine and attempt to recreate driveability fault. If any LEDs are now on, perform appropriate PINPOINT TEST. If LEDs still do not turn on, problem cannot be duplicated at this time. Perform CONTINUOUS MONITOR MODE (WIGGLE TEST) under QUICK TEST in TESTS W/CODES - 5.8L EEC-IV article.
DIAGNOSTICS BY CODE OR SYMPTOM
| Condition | Pinpoint Test |
|---|---|
| Any LEDs Are On | G |
| IDM LED On | H |
| PIP ACTIVE LED Off | J |
| PIP LED On | J |
| PIP DUTY LED On | J |
| BASE TIMING LED On Continuously | M |
| SPOUT LED On | M |
| Tester Resets | N |