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HOMESERVICE MANUALSMERCURY2010MARINER PREMIER, 3.0 G, AWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - PINPOINT TEST DY: ENGINE OIL TEMPERATURE (EOT) SENSOR THROUGH PINPOINT TEST HE: EXHAUST GAS RECIRCULATION (EGR) SYSTEMS - (EXCEPT DIESEL & HYBRID)PINPOINT TEST FF: POWER STEERING PRESSURE (PSP) SWITCHINTRODUCTION
2010 Mercury Mariner Premier, 3.0 G, AWD

Pinpoint Test FF: Power Steering Pressure (PSP) Switch: Introduction

2010 Mercury Mariner Premier, 3.0 G, AWDSECTION Introduction
WARNING: CROWN VICTORIA POLICE INTERCEPTOR VEHICLES EQUIPPED WITH FIRE SUPPRESSION SYSTEM, REFER TO APPROPRIATE FIRE SUPRESSIN ARTICLE FOR IMPORTANT SAFETY WARNINGS . FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.

This pinpoint test is intended to diagnose the following:

  • power steering pressure (PSP) switch (3N824)
  • harness circuits: PSPSW and SIGRTN
  • powertrain control module (PCM) (12A650)
Fig 1: Power Steering Pressure (PSP) Switch Connector
G06290628Courtesy of FORD MOTOR CO.

The PSP and SIGRTN circuits may be reversed in the harness connector. Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematic and connector information.

For PCM connector views or reference values, refer to REFERENCE VALUES .

POWERTRAIN CONTROL MODULE (PCM) CONNECTOR PIN REFERENCE CHART

Vehicle Connector Pin Circuit
Edge,
MKX		 190-Pin B17 PSPSW
Explorer,
Explorer SportTrac,
Mountaineer		 170 Pin B41
B27		 SIGRTN
PSPSW
F-150 190-Pin B58 SIGRTN
Flex,
MKS,
MKT,
Taurus		 190-Pin E41 SIGRTN
Fusion,
MKZ		 140 Pin E65 PSPSW
Ranger 170 Pin B41
B34		 SIGRTN
PSPSW
All other vehicles 170 Pin E58
B34		 SIGRTN
PSPSW
Fig 2: Shorting Bar For Harness Circuit Without PSP Switch (Typical)
G06290629Courtesy of FORD MOTOR CO.
RENDER: 1.0x

NO RELATED

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