Section 1 (Engine Controls - Tests W/Codes - EEC-IV)
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 1993 Mercury Tracer, 1993 Mercury Topaz, 1993 Mercury Sable, 1993 Mercury Grand Marquis, and 1993 Mercury Cougar. However, it is still accessible from the selected car via links, so may be relevant.
- Introduction
- Self-Diagnostic System
- Quick Test
- Additional System Functions
- Summary
- Diagnostic Trouble Codes
- Circuit Tests
- Notes
- How To Use Circuit Tests
- Circuit Test Aa - No Start (Distributor Ignition Systems)
- Circuit Test Ab - No Start, EI - DISTRIBUTORLESS Ignition
- Circuit Test Ac - No Start, EI - DISTRIBUTORLESS Ignition
- 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 De - Flexible Fuel (Ff) Sensor
- CKT Test DF - Manifold Absolute Pressure (Map)/Barometric
- Circuit Test Dg - Knock Sensor (KS)
- Circuit Test DH - Throttle Position (TP) Sensor
- Circuit Test DL - Pressure Feedback EGR (PFE) Valve, Delta
- Circuit Test DN - EGR Valve Position (EVP) Sensor & EGR
- Circuit Test DP - Vehicle Speed Sensor (VSS)
- Circuit Test Dr - Cylinder Identification (CID) Circuit
- 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/TPS Fuel Injector Pulse Width Test
- Circuit Test H - Fuel Control
- Circuit Test Ha - Adaptive Fuel Strategy
- Circuit Test HB - Flexible Fuel Control
- Circuit Test J - Fuel Pump Circuit (Relay & Inertia Switch)
- Circuit Test KA - EGR Vacuum Regulator (EVR) Solenoid
- Circuit Test Kb - Canister Purge (CANP) Valve
- Circuit Test Kc - Secondary Air Injection Solenoids
- Circuit Test KD - Canister Purge (CANP)
- Circuit Test KE - Idle Air Control (IAC) Solenoid
- Circuit Test KF - Low Fan CTRL (LFC)/High Fan CTRL (HFC)
- Circuit Test Kl - Shift Indicator Light (SIL)
- Circuit Test Km - Wide Open Throttle A/C Cut-Out (WAC) & A/C
- CKT Test Kn - Fuel Pressure Regulator CTRL (FPRC) Solenoid
- Circuit Test KP - Octane Adjust
- Circuit Test Kt - Intake Manifold Runner Control (IMRC)
- Circuit Test M - Dynamic Response Test
- CKT Test Ml - Self-Test Output (STO) Or Malfunction
- Circuit Test NA - Distributor Ignition System Ignition
- CKT Test NB - Ignition Diagnostic Monitor (IDM)
- Circuit Test NC - Ignition Diagnostic Monitor (IDM)
- Circuit Test Pa - Spark Timing Check (Distributor IGN. SYS)
- Circuit Test PB - Spark Timing Check DISTRIBUTORLESS Ignition
- Circuit Test Pc - Spark Timing Check DISTRIBUTORLESS Ignition
- Circuit Test QA - No Codes/Codes Not Listed
- Circuit Test QB - Diagnostic Trouble Code 15/512
- Circuit Test QC - Output State Check Not Functioning
- Circuit Test S - System Check
- Circuit Test Ta - Clutch Pedal Position (CCP) Switch/
- Circuit Test TC - Transmission Solenoids
- Circuit Test TD - Manual Lever Position (MLP) Sensor
- Circuit Test Te - Transmission Oil Temperature (Tot) Sensor
- Circuit Test TF - Transmission Speed Sensors
- Circuit Test TG - Electronic Transmission Continuous
- Circuit Test X - Constant Control Relay Module (CCRM)
- Circuit Test XB - Variable Control Relay Module (VCRM)
- Wiring Diagrams