Engine Controls - Tests W/Codes

Introduction
- Overview
Quick Test
- Overview
- Step 1.0 Visual Check
- Step 2.0 Vehicle Prep & Equipment Hookup
- Step 3.0 Perform KOEO Self-Test
- Step 3.1 Check For Continuous Codes 45, 46 Or 48
- Step 4.0 Computed Timing Check
  - Introduction
  - Begin
- Step 5.0 Perform Engine Running (KOER) Self-Test
- Step 6.0 KOEO Code-To-Test Chart
- Step 7.0 KOER Code-To-Test Chart
- Step 8.0 Continuous Code-To-Test Chart
- Step 9.0 Diagnosis By Symptom
Code Definition Tables
- Introduction
  - Notes
  - Link Menu
- 2.3L VIN [A]
- 2.9L VIN [T] CALIFORNIA
- 2.9L VIN [T] Federal
- 3.0L VIN [U]
- 4.0L VIN [X]
- 4.9L VIN [Y]
- 5.0L VIN [N]
- 5.8L VIN [H]
- 7.3L VIN [M]
- 7.5L VIN [G]
Clearing Codes Or KAM Memory
- Clearing Codes
- Clearing Keep Alive Memory (KAM)
EEC-IV Functional Tests
- Introduction
- Continuous Monitor Mode (Wiggle Test)
- Output State Check
- Cylinder Balance Test - SEFI Engines
  - Introduction
  - Details Of Operation
EEC-IV Backup Strategies & Effect On Mil Light
- Introduction
- Failure Mode Effects Management (FMEM), Code 98
- Hardware Limited Operational Strategy (HLOS)
- Mil Light ("Check Engine"/"Service Engine Soon") Operation
Sensor/Actuator Resistance & Voltage Specifications
Acronym/Definition Glossary
- Starting With Number
- Starting With Letter "A"
- Starting With Letter "B"
- Starting With Letter "C"
- Starting With Letter "D"
- Starting With Letter "E"
- Starting With Letter "F"
- Starting With Letter "G"
- Starting With Letter "H"
- Starting With Letter "I"
- Starting With Letter "K"
- Starting With Letter "L"
- Starting With Letter "M"
- Starting With Letter "N"
- Starting With Letter "O"
- Starting With Letter "P"
- Starting With Letter "Q"
- Starting With Letter "R"
- Starting With Letter "S"
- Starting With Letter "T"
- Starting With Letter "V"
- Starting With Letter "W"
General Pinpoint Test Notes
Test A - No Start (Non-EDIS Ignition)
- Test A - Introduction
- Test A: Step 1
- Test A: Step 2
- Test A: Step 3
- Test A: Step 4
- Test A: Step 5
- Test A: Step 6
- Test A: Step 7
- Test A: Step 8
- Test A: Step 9
- Test A: Step 10
- Test A: Step 11
- Test A: Step 12
- Test A: Step 20
- Test A: Step 21
Test Aa - No Start (EDIS Ignition Only)
- Test Aa - Introduction
- Test Aa: Step 1
- Test Aa: Step 2
- Test Aa: Step 3
- Test Aa: Step 4
- Test Aa: Step 5
- Test Aa: Step 6
- Test Aa: Step 7
- Test Aa: Step 8
- Test Aa: Step 9
- Test Aa: Step 10
Test B - Vehicle Battery
- Test B: - Introduction
- Test B: Step 1
- Test B: Step 2
- Test B: Step 3
- Test B: Step 4
- Test B: Step 5
- Test B: Step 6
- Test B: Step 7
- Test B: Step 8
Test C - Reference Voltage
- Test C - Introduction
- Test C: Step 1
- Test C: Step 2
- Test C: Step 3
- Test C: Step 4
- Test C: Step 5
- Test C: Step 6
- Test C: Step 7
- Test C: Step 9
- Test C: Step 10
Test DA - Temperature Sensor Test (Act, ECT & Vat)
- Test DA - Introduction
- Test DA: Step 1
- Test DA: Step 2
- Test DA: Step 3
- Test DA: Step 4
- Test DA: Step 10
- Test DA: Step 11
- Test DA: Step 20)
- Test DA: Step 21
- Test DA: Step 22
- Test DA: Step 90
- Test DA: Step 91
- Test DA: Step 92
Test Dc - Mass Airflow (MAF) Sensor
- Test Dc - Introduction
- Test Dc: Step 1
- Test Dc: Step 2
- Test Dc: Step 10
- Test Dc: Step 11
- Test Dc: Step 12
- Test Dc: Step 13
- Test Dc: Step 14
- Test Dc: Step 15
- Test Dc: Step 20
- Test Dc: Step 21
Test DF - Map/BP Sensors
- Test DF - Introduction
  - Manifold Absolute Pressure (Map)/Barometric Pressure (BP) Sensors
- Test DF: Step 1
- Test DF: Step 2
- Test DF: Step 3
- Test DF: Step 4
- Test DF: Step 5
- Test DF: Step 7
- Test DF: Step 8
- Test DF: Step 9
- Test DF: Step 10
- Test DF: Step 11
- Test DF: Step 12
- Test DF: Step 13
- Test DF: Step 90
- Test DF: Step 91
- Test DF: Step 92
Test Dg - Knock Sensor (KS)
- Test Dg - Introduction
- Test Dg: Step 1
- Test Dg: Step 2
- Test Dg: Step 3
- Test Dg: Step 4
- Test Dg: Step 5
- Test Dg: Step 6
Test DH - Throttle Position (TP) Sensor
- Test DH - Introduction
- Test DH: Step 1
- Test DH: Step 2
- Test DH: Step 3
- Test DH: Step 4
- Test DH: Step 6
- Test DH: Step 10
- Test DH: Step 11
- Test DH: Step 12
- Test DH: Step 14
- Test DH: Step 20
- Test DH: Step 21
- Test DH: Step 90
- Test DH: Step 91
- Test DH: Step 92
- Test DH: Step 93
- Test DH: Step 94
- Test DH: Step 95
- Test DH: Step 96
Test DJ - Engine Rpm Sensor (7.3L Diesel)
- Test DJ - Introduction
- Test DJ: Step 1
- Test DJ: Step 2
- Test DJ: Step 3
- Test DJ: Step 4
- Test DJ: Step 5
Test DN EVP Sensor & EVR Solenoid
- Test DN - Introduction
  - EGR Valve Position (EVP) Sensor EGR Valve Regulator (EVR) Solenoid
- Test DN: Step 1
- Test DN: Step 2
- Test DN: Step 3
- Test DN: Step 4
- Test DN: Step 5
- Test DN: Step 6
- Test DN: Step 7
- Test DN: Step 10
- Test DN: Step 11
- Test DN: Step 12
- Test DN: Step 13
- Test DN: Step 20
- Test DN: Step 21
- Test DN: Step 22
- Test DN: Step 25
- Test DN: Step 26
- Test DN: Step 40
- Test DN: Step 42
- Test DN: Step 43
- Test DN: Step 44
- Test DN: Step 45)
- Test DN: Step 50
- Test DN: Step 51
- Test DN: Step 90
- Test DN: Step 91
- Test DN: Step 92
- Test DN: Step 93
- Test DN: Step 94
- Test DN: Step 95
- Test DN: Step 96
- Test DN: Step 98
- Test DN: Step 99
Test DP - Vehicle Speed Sensor (VSS)
- Test DP - Introduction
- Test DP: Step 1
- Test DP: Step 2
- Test DP: Step 3
- Test DP: Step 4
- Test DP: Step 5
- Test DP: Step 10
- Test DP: Step 11
- Test DP: Step 12
Test DQ - FIPL Sensor (7.3L Diesel)
- Test DQ - Introduction
  - Fuel Injection Pump Lever (FIPL) Sensor 7.3L Diesel
- Test DQ: Step 1
- Test DQ: Step 2
- Test DQ: Step 3
- Test DQ: Step 4
- Test DQ: Step 10
- Test DQ: Step 11
- Test DQ: Step 12
- Test DQ: Step 13
- Test DQ: Step 14
- Test DQ: Step 90
- Test DQ: Step 91
- Test DQ: Step 92
- Test DQ: Step 93
- Test DQ: Step 94
- Test DQ: Step 95
- Test DQ: Step 96
Test Fa - Neutral Drive Switch (NDS) A/C Input
- Test Fa - Introduction
- Test Fa: Step 1
- Test Fa: Step 2
- Test Fa: Step 3
- Test Fa: Step 4
- Test Fa: Step 5
- Test Fa: Step 6
- Test Fa: Step 7
- Test Fa: Step 8
- Test Fa: Step 9
- Test Fa: Step 10
- Test Fa: Step 11
- Test Fa: Step 13
- Test Fa: Step 14
- Test Fa: Step 15
- Test Fa: Step 16
- Test Fa: Step 17
- Test Fa: Step 18
- Test Fa: Step 20
Test FD - Brake On/Off (Boo) Switch
- Test FD - Introduction
- Test FD: Step 1
- Test FD: Step 2
- Test FD: Step 3
- Test FD: Step 5
- Test FD: Step 6
- Test FD: Step 7
- Test FD: Step 10
- Test FD: Step 11
- Test FD: Step 12
- Test FD: Step 13
- Test FD: Step 14
- Test FD: Step 15
Test Ff - Power Steering Pressure Switch (PSPS)
- Test Ff - Introduction
- Test Ff: Step 1
- Test Ff: Step 2
- Test Ff: Step 3
- Test Ff: Step 4
- Test Ff: Step 5
- Test Ff: Step 6
- Test Ff: Step 7
- Test Ff: Step 8
- Test Ff: Step 9
- Test Ff: Step 10
- Test Ff: Step 11
Test H - Fuel Control
- Test H - Introduction
- Test H: Step 1
- Test H: Step 2
- Test H: Step 3
- Test H: Step 4
  - Notes
  - PFI Engines
  - Sequential PFI Engines
- Test H: Step 5
- Test H: Step 6
  - Notes
  - PFI Engines
  - Sequential PFI Engines
- Test H: Step 7
  - Notes
  - PFI Engines
- Test H: Step 8
- Test H: Step 9
- Test H: Step 11
- Test H: Step 12
- Test H: Step 14
  - Notes
  - 4-Wire HEGO Sensors
  - All Other HEGO Sensors
- Test H: Step 15
  - Notes
  - Trucks With 4-Wire HEGO
  - All Others
  - All Vehicles With Dual HEGO Sensors
- Test H: Step 16
- Test H: Step 17
- Test H: Step 18
- Test H: Step 20
- Test H: Step 21
- Test H: Step 22
- Test H: Step 23
- Test H: Step 24
- Test H: Step 25
- Test H: Step 26
- Test H: Step 27
- Test H: Step 28
  - Notes
  - All Ma PFI Engines
  - All Other Engines
- Test H: Step 29
  - Notes
  - Circuits
  - Unmetered Air/Vacuum Leaks
  - HEGO Fuel Fouled
  - Ignition System
  - Improper Fuel Used
  - Fuel Pressure
  - TP Sensor
- Test H: Step 30
- Code 41
- Code 42
- Code 43
- Code 65
- Code 85
- Code 86
  - Notes
  - Code 41
  - Code 42
  - Codes 41 and 42:
  - Code 43
  - Code 65
  - Code 85
  - Code 86
Test J - Fuel Pump Circuit
- Test J - Introduction
- Test J: Step 1
- Test J: Step 2
- Test J: Step 5
- Test J: Step 6
- Test J: Step 7
- Test J: Step 8
- Test J: Step 9
- Test J: Step 10
- Test J: Step 11
- Test J: Step 20
  - Notes
  - No Starts
  - Vehicle Starts
- Test J: Step 21
- Test J: Step 22
- Test J: Step 23
- Test J: Step 24
- Test J: Step 25
- Test J: Step 26
- Test J: Step 30
- Test J: Step 31
- Test J: Step 32
- Test J: Step 90
- Test J: Step 91
- Test J: Step 92
- Test J: Step 93
- Test J: Step 94
- Test J: Step 95
Test Kc - Air Management System (Am1/Am2)
- Test Kc - Introduction
- Test Kc: Step 1
- Test Kc: Step 2
- Test Kc: Step 3
- Test Kc: Step 4
- Test Kc: Step 5
- Test Kc: Step 6
- Test Kc: Step 7
- Test Kc: Step 8
- Test Kc: Step 9
- Test Kc: Step 10
- Test Kc: Step 11
- Test Kc: Step 12
Test KD - Canister Purge (CANP)
- Test KD - Introduction
- Test KD: Step 1
- Test KD: Step 2
- Test KD: Step 3
- Test KD: Step 4
- Test KD: Step 5
- Test KD: Step 6
- Test KD: Step 7
- Test KD: Step 8
- Test KD: Step 9
- Test KD: Step 10
- Test KD: Step 15
Test KE - Idle Speed Control (Bypass Air)
- Test KE - Introduction
- Test KE: Step 1
- Test KE: Step 2
- Test KE: Step 3
- Test KE: Step 4
- Test KE: Step 5
- Test KE: Step 6
- Test KE: Step 7
- Test KE: Step 8
- Test KE: Step 9
- Test KE: Step 10
- Test KE: Step 11
- Test Step 12
- Test KE: Step 15
- Test KE: Step 16
- Test KE: Step 17
- Test KE: Step 18
- Test KE: Step 19
- Test KE: Step 20
- Test KE: Step 21
- Test KE: Step 22
- Test KE: Step 25
- Test KE: Step 26
Test Km - WAC & A/C Demand Switch
- Test Km - Introduction
  - Wide Open Throttle A/C Cut-Out (WAC) & A/C Demand Switch
- Test Km: Step 1
- Test Km: Step 2
  - Notes
  - WAC Relay
- Test Km: Step 3
- Test Km: Step 4
- Test Km: Step 5
- Test Km: Step 6
- Test Km: Step 7
- Test Km: Step 8
- Test Km: Step 9
- Test Km: Step 15
- Test Km: Step 16
  - Notes
  - WAC Relay
- Test Km: Step 17
- Test Km: Step 18
- Test Km: Step 19
- Test Km: Step 20
- Test Km: Step 22
- Test Km: Step 23
- Test Km: Step 24
- Test Km: Step 30
- Test Km: Step 31
- Test Km: Step 35
Test KP - Octane Adjust
- Test KP - Introduction
Test M - Dynamic Response Test
- Test M - Introduction
  - Notes
  - Code 77 Displayed: System Failed to Recognize WOT Test
Test Ml - Check Engine/Malfunction Light
- Test Ml - Introduction
  - "Check Engine", "Check DCL", Or "Service Engine Soon" Light/Message
- Test Ml: Step 1
- Test Ml: Step 5
- Test Ml: Step 6
- Test Ml: Step 7
- Test Ml: Step 8
- Test Ml: Step 10
- Test Ml: Step 15
- Test Ml: Step 20
- Test Ml: Step 25
Test N - Ignition/Erratic Diagnostic Monitor (IDM)
- Test N - Introduction
- DISTRIBUTORLESS Ignition System (Dis) - 2.3L
- Electronic DISTRIBUTORLESS Ignition System (EDIS)
- Closed Bowl Distributor (CBD) - 7.5L
- TFI Module Distributor
Engine Controls - Tests W/Codes
- Test N: Step 1
- Test N: Step 2
- Test N: Step 3
- Test N: Step 4
- Test N: Step 5
- Test N: Step 6
- Test N: Step 7
- Test N: Step 8
- Test N: Step 9
- Test N: Step 10)
- Test N: Step 11
- Test N: Step 12
- Test N: Step 13
- Test N: Step 14
- Test N: Step 15
- Test N: Step 16
- Test N: Step 20
Test P - Spark Timing Check
- Test P - Introduction
- Test P: Step 1
- Test P: Step 2
- Test P: Step 3
- Test P: Step 4
- Test P: Step 5
- Test P: Step 6
- Test P: Step 7
Test QA - No Codes/Codes Not Listed
- Test QA - Introduction
- Test QA: Step 1
- Test QA: Step 2
- Test QA: Step 3
- Test QA: Step 4
- Test QA: Step 5
- Test QA: Step 6
- Test QA: Step 7
- Test QA: Step 8
Test QB - KOEO Or Continuous Memory Service Code 15
- Test QB - Introduction
- Test QB: Step 1
- Test QB: Step 2
- Test QB: Step 3
Test QC - Output State Check Not Functioning
- Test QC: Introduction
- Test QC: Step 1
- Test QC: Step 2
Test QD - Re-Initialization Check
- Test QD - Introduction
- Test QD: Step 1
- Test QD: Step 2
- Test QD: Step 3
- Test QD: Step 4
- Test QD: Step 5
Test S - System Check
- Test S - Introduction
- Test S: Step 1
- Test S: Step 2
- Test S: Step 3
- Test S: Step 4
- Test S: Step 5
- Test S: Step 6
- Test S: Step 7
- Test S: Step 8
- Test S: Step 9
Test Tb - A4LD Transmission
- Test Tb - Introduction
- Test Tb: Step 1
- Test Tb: Step 2
- Test Tb: Step 3
- Test Tb: Step 4
- Test Tb: Step 5
Test TC - E4OD Transmission
- Test TC - Introduction
- Test TC: Step 1
- Test TC: Step 2
- Test TC: Step 3
- Test TC: Step 4
- Test TC: Step 10
- Test TC: Step 11
  - Notes
  - 4WD Low Circuit
  - Overdrive Cancel Switch (OCS) Circuit
- Test TC: Step 12
  - Notes
  - 4WD Low Circuit
  - Overdrive Cancel Switch (OCS) Circuit
- Test TC: Step 13
- Test TC: Step 14
  - Notes
  - 4WD Low Circuit
  - OCS-OCIL Circuit
- Test TC: Step 15
  - Notes
  - 4WD Low Circuit
  - OCS-OCIL Circuit
- Test TC: Step 16
  - Notes
  - 4WD Low Circuit
  - OCS-OCIL Circuit
- Test TC: Step 17
- Test TC: Step 18
- Test TC: Step 19
- Test TC: Step 20
- Test TC: Step 21
- Test TC: Step 22
- Test TC: Step 23
- Test TC: Step 24
- Test TC: Step 25
- Test TC: Step 30
- Test TC: Step 31
- Test TC: Step 32
- Test TC: Step 33
- Test TC: Step 40
- Test TC: Step 41
- Test TC: Step 50
- Test TC: Step 51
- Test TC: Step 52
- Test TC: Step 90
- Test TC: Step 91
- Test TC: Step 92
  - Notes
  - MLP Sensor (Code 67)
  - Transmission Solenoids (Codes 62 Or 99) & Tot Sensor (Codes
- Test TC: Step 93
- Test TC: Step 94
- Test TC: Step 95
- Test TC: Step 96
- Test TC: Step 97
Test X - Integral Relay Control Module (IRCM)