Pinpoint Test Kg: Fuel Injector: Introduction
WARNING:
TO PREVENT THE RISK OF HIGH-VOLTAGE SHOCK, ALWAYS FOLLOW PRECISELY ALL WARNINGS AND SERVICE INSTRUCTIONS, INCLUDING INSTRUCTIONS TO DEPOWER THE SYSTEM. THE HIGH-VOLTAGE SYSTEM UTILIZES APPROXIMATELY 300 VOLTS DC, PROVIDED THROUGH HIGH-VOLTAGE CABLES TO ITS COMPONENTS AND MODULES. THE HIGH-VOLTAGE CABLES AND WIRING ARE IDENTIFIED BY ORANGE HARNESS TAPE OR ORANGE WIRE COVERING. ALL HIGH-VOLTAGE COMPONENTS ARE MARKED WITH HIGH-VOLTAGE WARNING LABELS WITH A HIGH-VOLTAGE SYMBOL. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY OR DEATH.
WARNING:
WHEN HANDLING FUEL, ALWAYS OBSERVE FUEL HANDLING PRECAUTIONS AND BE PREPARED IN THE EVENT OF FUEL SPILLAGE. SPILLED FUEL MAY BE IGNITED BY HOT VEHICLE COMPONENTS OR OTHER IGNITION SOURCES. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY.
This pinpoint test is intended to diagnose the following:
- fuel injector(s) (9F593)
- harness circuits: VPWR and INJ 1 through 4
- powertrain control module (PCM) (12A650)
| Pin | Circuit |
|---|---|
| 2 | VPWR (Vehicle Power) |
| 1 | INJ4 (Injector 4) |
| 1 | INJ3 (Injector 3) |
| 1 | INJ2 (Injector 2) |
| 1 | INJ1 (Injector 1) |
| Pin | Circuit |
|---|---|
| E46 | INJ4 (Injector 4) |
| E44 | INJ3 (Injector 3) |
| E45 | INJ2 (Injector 2) |
| E34 | INJ1 (Injector 1) |