Engine Controls - Tests W/Codes - 2.3L

Introduction
Diagnostic Formats
Service Code Descriptions
- Notes
- KOEO & KOER Codes (Hard Faults)
- Continuous Memory Codes (Soft Faults)
- Retrieving Codes
Clearing Codes
Reading Diagnostic Codes
- KOEO & KOER Self-Test Codes
- Separator Pulse
- Pass Codes
- Continuous Memory Codes
- Fast Codes
Quick Test Procedures
- Description
Visual Check & Vehicle Preparation
Equipment Hook-Up
- Notes
- Analog Volt/Ohmmeter (VOM)
- Scan Tool
- Star Tester
- Check Engine Or Service Engine Soon Light (Mil)
KOEO Self-Test
- Notes
- Computed Timing Check
- KOER Self-Test
Continuous Monitor Mode (Wiggle Test)
- Notes
- KOEO Wiggle Test Procedure
- KOER Wiggle Test Procedure
Additional System Functions
- Notes
- Check Eng/Service Eng Soon Malfunction Indicator Light (Mil)
Malfunction Indicator Application
- Notes
- Output State Check
- Failure Mode Effects Management (FMEM), Code 98
- Hardware Limited Operational Strategy (HLOS)
- Cylinder Balance Test
Frequently Used EEC-IV Abbreviations
Summary
PFI Service Code Definitions
- All PFI & Ma PFI Models
KOEO Code/Test Menu - 2.3L
KOER Code/Test Menu - 2.3L
Continuous Code/Test Menu - 2.3L
Circuit Tests
- Notes
- How To Use Circuit Tests (Tests A To X)
- ECA Sensor Resistance & Pin Voltage Reference Chart
Test A - TFI & Dis Ignition Systems
- No Start
Test Aa - No Start (EDIS Ignition Systems)
Test B - Checking Vehicle Battery
Test C - Reference Voltage
Test DA - Temperature Sensor Test (Act, ECT & Vat)
Test Dc - Mass Airflow Sensor (MAF)
- Notes
- 2.3L Ma PFI Engines
- All Other Engines
Test Dd - EVP Sensor, EGRC Solenoid & EGRV Solenoid
- EGR Valve Position (EVP) Sensor EGR Control (EGRC) Solenoid & EGR Vent (EGRV) Solenoid
Test DF - Map/BP Sensors
- Manifold Absolute Pressure (Map)/Barometric Pressure (BP) Sensors
Test Dg - Knock Sensor (KS)
Test DH - Throttle Position Sensor (TPS)
Test DL - PFE Valve & EVR Solenoid
- Pressure Feedback EGR (PFE) Valve & EGR Vacuum Regulator
Test DN - EVP Sensor & EVR Solenoid
- EGR Valve Position (EVP) Sensor & EGR Valve Regulator (EVR) Solenoid
Test DP - Vehicle Speed Sensor (VSS)
- Notes
- Preliminary Instructions - Auto Trans
- Preliminary Instructions - Man Trans
Test Dr - Cylinder Identification (CID) Sensor
Test Fa - Neutral Drive Switch (NDS) A/C Input CKT
Test FD - Brake On/Off Switch (Boo)
Test Ff - Power Steering Pressure Switch (PSPS)
Test H - Fuel Control
- Notes
- PFI Engines
- Sequential PFI Engines
- 4-Wire HEGO Sensors
- All Other HEGO Sensors
- 2.3L Ma Cars
- For All Others
- All Vehicles With Dual HEGO Sensors
- All Ma PFI Engines
- All Other Engines
- Code 41
- Code 42
- Code 43
- Code 65
- Code 85
- Code 86
- Engine Controls - Tests W/Codes - 2.3L
Test J - Fuel Pump CKT (Relay & Inertia Switch)
- Notes
- Code 95
  - No Starts
  - Vehicle Starts
Test KA - EGR On/Off Control
Test Kc - Air Management System (Am1/Am2)
Test KD - Canister Purge (CANP)
Test KE - Idle Speed Control (Air By-Pass)
Test KF - EDF/HEDF Electric Cooling Fans
- Electro Drive Fan (EDF)/High Electro Drive Fan (HEDF)
- Code 83
- Code 88
Test KH - Service Pin Adjustment
Test Kl - Shift Indicator Light (SIL)
Test Km - WAC & A/C Demand Switch
- Wide Open Throttle A/C Cut-Out (WAC) & A/C Demand Switch
  - Notes
  - A/C Fan Controller (2.3L PFI - Car)
Test KP - Octane Adjust
Test M, Code 77 - Dynamic Response Test
Test Ml, Codes 70, 71 Or 72 - Malfunction Indicator
- "Check Engine", "Check DCL", Or "Service Engine Soon" Light/Message (Malfunction Indicator)
Test N - Ignition Diagnostic Monitor (IDM)
- Notes
- DISTRIBUTORLESS Ignition System (Dis)
- Electronic DISTRIBUTORLESS Ignition System (EDIS)
- Closed Bowl Distributor (CBD)
- TFI Module Distributor
Test P - Spark Timing Check
Test QA - No Codes/Codes Not Listed
Test QB, Code 15 - KOEO Or Continuous Memory Code
Test QC - Output State Check Not Functioning
Test QD - Re-Initialization Check
Test QE - Key Power Check
Test S - System Check
Test T - AXOD Transaxle
Test Tb - A4LD Transmission
Test X - Integral Relay Control Module (IRCM)