Section 7 (2.3L CEC Tests W/Codes)
WARNING: This page is about a different car, the 1989 Mercury Topaz, 1989 Ford Tempo, and 1989 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
- Diagnosis & Testing
- Quick Test
- How To Use Quick Tests
- Visual Check & Vehicle Preparation
- Equipment Hook-Up
- Key On Engine Off (KOEO) Self-Test
- Computed Timing Check
- Key On Engine Running (KOER) Self-Test
- Continuous Self Test
- Continuous Monitor Mode (Wiggle Test)
- Diagnosis By Symptom
- Diagnostic Aids
- ECA Pin Voltage & Resistance Checks
- Frequently Used EEC-IV Abbreviations
- KOEO Code/Test Menu
- KOER Code/Test Menu
- Continuous Code/Test Menu
- Symptom/Test Menu
- Circuit Tests
- How To Use Circuit Tests
- A1 - No Start
- A2 - Vehicle Battery
- A3 - Reference Voltage
- B1 - Vane Air Temperature (Vat) Sensor
- B2 - Air Charge Temperature (Act) Sensor
- B3 - Mass Airflow Sensor (MAF)
- B4 - EGR Valve Position Sensor EGR Control Solenoid & EGR Vent Solenoid
- B5 - Engine Coolant Temperature (ECT) Sensor
- B6 - Manifold Absolute Press. (Map)/Barometric Press. (BP) Sensor
- B7 - Knock Sensor (KS)
- B8 - Throttle Position Sensor (TPS)
- B9 - Vane Airflow (VAF) Sensor
- B10 - Pressure Feedback EGR Valve & EGR VACUM Regulator Solenoid
- B11 - EGR Valve Position (EVP) Sensor & EGR Valve Regulator (EVR) Solenoid
- B12 - Vehicle Speed Sensor (VSS)
- B13 - Neutral Drive Switch (NDS) A/C Input
- B14 - Brake On/Off Switch (Boo)
- B15 - Power Steering Pressure Switch (PSPS)
- C1 - Fuel Control - All Applications
- C2 - Fuel Pump Circuit (Inertia Switch)
- D1 - EGR On/Off Control
- D2 - Idle Speed CTRL (Dc Motor/Idle Tracking SW. Assembly & TPS)
- D3 - Air Management System (Am1/Am2)
- D4 - Canister Purge (CANP)
- D5 - Idle Speed Control (Air By-Pass)
- D6 - Shift Indicator Light (SIL)
- D7 - Wide Open Throttle A/C Cut-Out (WAC) & A/C Demand Switch
- D8 - Octane Adjust
- D9 - Supercharger By-Pass Solenoid (SBS)
- D10 - Dynamic Response Test
- D11 - "Check Engine" Light/Message (Malfunction Indicator)
- D12 - Ignition Diagnostic Monitor (IDM)
- D13 - Spark Timing Check
- D14 - No Codes/Codes Not Listed
- D15 - Code 15 KOEO Continuous
- D16 - Output State Check Not Functioning
- D17 - Re-Initialization Check
- D18 - Key Power Check
- D19 - System Check
- D20 - Intake Air Control Valve (IAC) System
- D21 - AXOD Transaxle
- D22 - A4LD Transmission
- D23 - Integral Relay Control Module (IRCM)
- D24 - AXOD Electrical System Diagnosis
- Wiring Diagrams