Pinpoint Tests KD: Electric Exhaust Gas RECIRCULATION (EEGR) System: 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.
This pinpoint test is intended to diagnose the following:
- EEGR system
- EEGR stepper motor (9D475)
- harness circuits: EGRMC1, EGRMC2, EGRMC3, EGRMC4 and VPWR
- PCM (12A650)
| Pin | Circuit |
|---|---|
| 6 | EGRMC4 (EGR Motor Control 4) |
| 5 | VPWR (Vehicle Power) |
| 4 | EGRMC3 (EGR Motor Control 3) |
| 3 | EGRMC2 (EGR Motor Control 2) |
| 2 | VPWR (Vehicle Power) |
| 1 | EGRMC1 (EGR Motor Control 1) |
| Pin | Circuit |
|---|---|
| E11 | EGRMC4 (EGR Motor Control 4) |
| E40 | EGRMC3 (EGR Motor Control 3) |
| E41 | EGRMC2 (EGR Motor Control 2) |
| E12 | EGRMC1 (EGR Motor Control 1) |