Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY2010MARINER HYBRID, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1377 (ENGINE CONTROLS - PINPOINT TESTS (HYBRID))
2010 Mercury Mariner Hybrid, AWD
Section 1377 (Engine Controls - Pinpoint Tests (Hybrid))
2010 Mercury Mariner Hybrid, AWDSECTION Section 1377 (Engine Controls - Pinpoint Tests (Hybrid))
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.
- Pinpoint Test A: Engine No Start
- Pinpoint Test AA: Engine Disabled and Vehicle Immobilized
- Pinpoint Test B: Powertrain Control Module (PCM) Power Relay
- Pinpoint Test BC: DTCs P0562 and P0563: Transaxle Control Module (TCM) Voltage Concern
- Pinpoint Test C: Reference Voltage (VREF)
- Pinpoint Test DA: Intake Air Temperature (IAT) Sensor
- Pinpoint Test DC: Mass Air Flow (MAF) Sensor
- PINPOINT TEST DG: Knock Sensor (KS)
- Pinpoint Test DK: Accelerator Pedal Position (APP) Sensor
- Pinpoint Test DL: Cylinder Head Temperature (CHT) Sensor
- Pinpoint Test DM: Manifold Absolute Pressure (MAP) Sensor
- Pinpoint Test DN: Motor Electronics Coolant Temperature (MECT) Sensor
- Pinpoint Test DP: Powertrain Control Module (PCM) Vehicle Speed
- Pinpoint Test DR: Camshaft Position (CMP) Sensor
- Pinpoint Test DV: Electronic Throttle Body (ETB)
- Pinpoint Test DW: Heated Oxygen Sensor (HO2S)
- Pinpoint Test DZ: Universal Heated Oxygen Sensor (HO2S)
- Pinpoint Test EM: Emission Compliance
- Pinpoint Test FD: Brake Pedal Inputs
- Pinpoint Test H: Fuel Control
- Pinpoint Test HC: Fuel Delivery System
- Pinpoint Test HD: Misfire Detection Monitor
- Pinpoint Test HF: Catalyst Efficiency Monitor and Exhaust Systems
- Pinpoint Test HG: Positive Crankcase Ventilation (PCV) System
- Pinpoint Test HK: Variable Camshaft Timing (VCT)
- Pinpoint Test HU: Intake Air System
- Pinpoint Test HX: Evaporative Emission (EVAP) Monitor and System
- Pinpoint Test JB: Secondary Ignition
- Pinpoint Test JD: Crankshaft Position (CKP) Sensor
- Pinpoint Test JF: Integrated Ignition Coil On Plug (COP) Coils A Through D Failure
- Pinpoint Test JH: Engine Speed Signal
- Pinpoint Test KC: Fuel Pump Control Module
- Pinpoint Test KD: Electric Exhaust Gas Recirculation (EEGR) System
- Pinpoint Test KF: Variable Speed Electric Cooling Fan
- Pinpoint Test KG: Fuel Injector
- Pinpoint Test KT: Motor Electronics Cooling System (MECS) Pump
- Pinpoint Test QA: Unable to Activate Self-Test/Network Communication Error
- Pinpoint Test QB: Keep Alive Power
- Pinpoint Test QC: DTC P1000: On Board Diagnostic (OBD) Systems Readiness Test Not Complete
- Pinpoint Test QE: Hybrid-Electric System
- Pinpoint Test QF: Electronic Throttle Control (ETC) System
- Pinpoint Test TA: Transmission Range (TR) Sensor
- Pinpoint Test TC: Torque Of Generator Signal
- Pinpoint Test TD: Torque Of Motor Signal
- Pinpoint Test TE: Generator Motor Shutdown
- Pinpoint Test TI: DTC P1A08: Generator Mode Signal
- Pinpoint Test TJ: Variable Voltage Controller Over Temperature Fault
- Pinpoint Test TL: Generator Over Temperature Fault
- Pinpoint Test TM: Traction Motor Over Temperature
- Introduction
- Notes
- Test Procedure
- TM1 Diagnostic Trouble Codes (DTCS) P0A2F And P0A3C: Check For Self-Test DTCS
- TM2 DTC P0A3C: Check For The Presence Of Pcm DTCS P0A00, P0A02, P0A03, P0A7C
- TM3 Visual Inspection Of The Motor Electronics Cooling System
- TM4 Check The TCM Motor Electronics Coolant Temperature (MECT) PID
- TM5 Check The MCLTEMP While Recreating The Symptom
- TM6 DTC P0A2F: Check The Automatic Transaxle Fluid Level
- TM7 Visual Inspection Of The Motor Electronics Cooling System
- TM8 Check The MCLTEMP While Recreating The Symptom
- TM9 Check The MCLTEMP While Recreating The Symptom
- Introduction
- Pinpoint Test TO: Generator Overspeed
- Pinpoint Test TP: Traction Motor Overspeed
- Pinpoint Test TQ: Park Mechanism Malfunction
- Pinpoint Test TR: Immediate Shutdown (ISDN) 1 and 2 Signals
- Pinpoint Test TS: Traction Motor And Generator Motor High Voltage Inverter Performance and Variable Voltage Controller Performance
- Pinpoint Test TT: Inverter High Voltage Performance
- Pinpoint Test TU: Calculated Torque Error
- Pinpoint Test TV: Engine Speed Desired Signal Out Of Range
- Pinpoint Test TY: Transmission Range Signal
- Pinpoint Test TZ: Vehicle Mode Signal
- Pinpoint Test Z: Intermittent
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.