C: Reference Voltage Introduction

C: Pinpoint Tests See: C: Reference Voltage - Pinpoint Test

Note

This Pinpoint Test is intended to diagnose the following:

• Sensor harness circuits: SIG RTN, VREF
• 3-wire sensors: throttle position (TP) sensor, differential pressure feedback EGR sensor, A/C pressure (ACP) sensor, fuel tank pressure (FTP) sensor, power steering pressure (PSP) sensor, fuel rail pressure (FRP) sensor and barometric (BARO) pressure sensor.
• Powertrain control module (PCM) (12A650)

Pinpoint Test Schematics and Connectors

2.0L 4V Focus