Pinpoint Test A: Engine No Start: 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 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: STOP THIS TEST AT THE FIRST SIGN OF A FUEL LEAK AND REPAIR AS REQUIRED. NO OPEN FLAME. NO SMOKING DURING FUEL DELIVERY CHECKS. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.

This pinpoint test is intended to diagnose the following:

spark (as related to electronic engine control)
powertrain control module (PCM) (12A650)

Fig 1: Electronic Throttle Body (ETB) Connector

Courtesy of FORD MOTOR CO.

ETB CONNECTOR PINS REFERENCE CHART

Pin	Circuit
4	ETCRTN (Electronic Throttle Control Return)
5	ETCREF (Electronic Throttle Control Reference Voltage to TP)

Data Link Connector (DLC)

Fig 2: Data Link Connector (DLC)

Courtesy of FORD MOTOR CO.

DLC PINS REFERENCE CHART

Pin	Circuit
13	FEPS (Flash EEPROM Programming Signal)