Pinpoint Test Dr: Camshaft Position (CMP) Sensor: 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:

CMP11 sensor (12K073)
harness circuits: CMP11, SIGRTN, and VBPWR
PCM (12A650)

Fig 1: Identifying Camshaft Position 11 Sensor Connector Terminals
Courtesy of FORD MOTOR CO.

Pin	Circuit
2	CMP11 (Camshaft Position 11)
3	SIGRTN (Signal Return)
1	VBPWR (Vehicle Buffered Power)

Fig 2: Identifying Powertrain Control Module Connector Terminals

Courtesy of FORD MOTOR CO.

Pin	Circuit
T21	CMP11 (Camshaft Position 11)
T29	SIGRTN (Signal Return)
T22	VBPWR (Vehicle Buffered Power)