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.
1995 Ford Probe Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Engine Controls - Tests W/Codes - EEC-IV (2.0L)
- Introduction
- Self-Diagnostic System
- Quick Test
- Additional System Functions
- Summary
- Diagnostic Trouble Code Reference Chart
- Diagnostic Trouble Code Definition Charts
- Circuit Tests
- Notes
- How To Use Circuit Tests
- Circuit Test Aa - No-Start (Di - Distributor Ignition System)
- Circuit Test Ac - No-Start (EI - DISTRIBUTORLESS Ignition Systems - High Data Rate)
- Circuit Test B - Checking Vehicle Battery
- Circuit Test C - Reference Voltage
- Circuit Test DA - Temperature Sensor Test - IAT & ECT
- Circuit Test Db - EGR Temperature (EGRT) Sensor
- Circuit Test Dc - Mass Airflow (MAF) Sensor
- Circuit Test Dd - EGR Position (EGRP) Sensor, EGR Vacuum (EGRV) Solenoid & EGR Atmospheric (EGRA) Solenoid
- Circuit Test DF - Map Absolute Pressure (Map)/Barometric Pressure (BARO) Sensor
- Circuit Test Dg - Knock Sensor (KS)
- Circuit Test DH - Throttle Position (TP) Sensor
- Circuit Test DL - Pressure Feedback EGR (PFE) Valve, Delta PFE (DPFE) Sensor & EGR Vacuum Regulator (EVR) Solenoid
- Circuit Test DN - EGR Valve Position (EVP) Sensor & EGR Valve Regulator (EVR) Solenoid
- Circuit Test DP - Vehicle Speed Sensor (VSS)
- Circuit Test Dr - Cylinder Identification (CID) Circuit
- Circuit Test DT - Power Steering Pressure (PSP) Sensor
- Circuit Test FD - Brake On-Off (Boo) Switch
- Circuit Test FE - Electrical Load Inputs
- Circuit Test Ff - Power Steering Pressure (PSP) Switch
- Circuit Test G - MAF/TP Fuel Injector Pulse Width Test
- Circuit Test H - Fuel Control
- Circuit Test Ha - Adaptive Fuel Strategy
- Circuit Test J - Fuel Pump Circuit (Relay & Inertia Switch)
- Circuit Test KD - Canister Purge (CANP)
- Circuit Test KE - Idle Air Control (IAC) Solenoid
- Circuit Test KF - Low Fan Control (LFC)/High Fan Control (HFC)
- Circuit Test Km - Wide Open Throttle A/C Cut-Out (WAC) & A/C Demand Switch
- Circuit Test Kn - Fuel Pressure Regulator Control (FPRC) Solenoid
- Circuit Test KP - Octane Adjust
- Circuit Test Kt - Intake Manifold Runner Control (IMRC) System
- Circuit Test M - Dynamic Response Test
- Circuit Test Ml - Self-Test Output (STO) Or Malfunction Indicator Light (Mil)
- Circuit Test NA - Distributor Ignition System (Di) Ignition Diagnostic Monitor (IDM)
- Circuit Test NC - Ignition Diagnostic Monitor (IDM) DISTRIBUTORLESS Ignition System (High Data Rate)
- Circuit Test Pa - Spark Timing Check (Distributor Ignition Systems)
- Circuit Test Pc - Spark Timing Check - DISTRIBUTORLESS Ignition System (High Data Rate)
- Circuit Test QA - No Codes/Codes Not Listed
- Circuit Test QB - Diagnostic Trouble Code 512
- Circuit Test QC - Output State Check Not Functioning
- Circuit Test QD - Pcm Internal Voltage
- Circuit Test S - System Check
- Circuit Test Ta - Clutch Pedal Position (CPP) Switch / Park/Neutral Position (PNP) Switch
- Circuit Test Tb - Transmission Control Switch (TCS) & Transmission Control Indicator Light (TCIL)
- Circuit Test TC - Transmission Solenoids
- Circuit Test TD - Transmission Range (Tr) Sensor
- Circuit Test Te - Transmission Fluid Temperature (TFT) Sensor
- Circuit Test TF - Turbine Shaft Speed Sensor (TSS)
- Circuit Test TG - Electronic Transmission Continuous Memory Diagnostic Trouble Codes
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.