Pinpoint Test DV: Electronic Throttle Body (ETB): Introduction
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, 2011 Ford Fusion, 2010 Mercury Milan, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
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 HYBRID 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:
SUBSTANTIAL OPENING AND CLOSING TORQUE IS APPLIED BY THIS SYSTEM. TO PREVENT INJURY, BE CAREFUL TO KEEP FINGERS AWAY FROM THROTTLE MECHANISM WHEN ACTUATED. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
NOTE:
The voltage of the TP2 circuit and PID reaches a limit of approximately 4.5 volts at approximately 45 degrees of throttle angle.
This pinpoint test is intended to diagnose the following:
- ETB (9F991)
- harness circuits: ETCRTN, ETCREF, TP1, TP2, TACM+, TACM-
- powertrain control module (PCM) (12A650)
ETB CONNECTOR PINS REFERENCE CHART
| Pin | Circuit |
|---|---|
| 2 | TACM- (Throttle Actuator Control Motor -) |
| 1 | TACM+ (Throttle Actuator Control Motor +) |
| 6 | TP2 (Throttle Position Sensor 2) |
| 3 | TP1 (Throttle Position Sensor 1) |
| 4 | ETCRTN (Electronic Throttle Control Return) |
| 5 | ETCREF (Electronic Throttle Control Reference Voltage to TP) |
PCM CONNECTOR PINS REFERENCE CHART
| Pin | Circuit |
|---|---|
| E59 | ETCREF (Electronic Throttle Control Reference Voltage to TP) |
| E60 | ETCRTN (Electronic Throttle Control Return) |
| B67 | VPWR (Vehicle Power) |
| B69 | PWRGND (Power Ground) |
| E51 | TACM- (Throttle Actuator Control Motor -) |
| E34 | TACM+ (Throttle Actuator Control Motor +) |
| E45 | TP2 (Throttle Position Sensor 2) |
| E44 | TP1 (Throttle Position Sensor 1) |