|
Code |
Definition |
|
11 |
System checks OK |
|
12
|
Idle Speed Control motor or Air Bypass not controlling idle properly (generally idle too low) - ISC |
| 13 |
(O) ISC did not respond properly (extends to touch throttle then retracts for
KOEO) - ISC |
| |
(R) Idle Speed Control motor or Air Bypass not controlling idle properly (generally idle too high) |
| |
(M) ISC sticking, open ITS circuit or TP sticking |
| 14 |
Ignition pickup was erratic - Ignition Systems |
| |
E4OD Transmission diesel RPM sensor - Diesel RPM sensor |
| 15 |
(O) No Keep Alive Memory power to PCM pin 1 or bad PCM (Memory Test Failure) |
| |
(M) KAM (pin 1) was interrupted (was battery disconnected ?) |
| 16 |
1.9L & 2.5L - Throttle stop set too high - IDLE or Idle Set Procedures |
| |
2.3L - RPM's too low - IDLE |
| |
(O) Electronic ignition - IDM circuit fault - Ignition Systems |
| 17 |
1.9L & 2.5L - Throttle stop set too low - IDLE |
| 18 |
(R) Check base timing & advance function - Timing Tests |
| |
(M) Ignition TACH signal erratic - Ignition Systems |
| 19 |
(O) No Vehicle Power (pins 37 + 57) or bad PCM VPWR Diagnosis |
| |
(R) Erratic idle during test (reset throttle & retest) - Idle Set Procedures |
| |
Electronic ignition Cylinder ID sensor/circuit problem - Ignition Systems |
| 21 |
Engine Coolant Temperature (ECT) sensor out of range - ECT |
| 22 |
MAP (vacuum) or BARO signal out of range - MAP |
| 23 |
Throttle sensor out of range or throttle set too high - TPS |
| 24 |
Intake Air Temperature (IAT) or Vane Air Temperature (VAT) sensor out of range - IAT VAT |
| 25 |
Knock sensor not tested (ignore if not pinging) - KS |
| 26 |
Mass Air Flow (MAF) or Vane Air Flow (VAF) out of range - MAF VAF |
| |
Transmission Oil Temperature (TOT) sensor out of range - Transmissions |
| 27 |
Vehicle Speed Sensor problem - VSS |
| 28 |
Vane Air Temperature (VAT) sensor out of range - VAT |
| |
2.3L w/Electronic Ignition - Cyl ID, IDM low or right coil pack failure - Ignition Systems |
| 29 |
Vehicle Speed Sensor problem - VSS |
| |
EGR CODES DEPEND ON WHAT SYSTEM TYPE THE VEHICLE IS EQUIPPED WITH: |
| |
EVP is for vehicles equipped with EGR
solenoid(s), with or without an EVP sensor |
| |
EVR is for vehicles equipped with an EGR Vacuum Regulator (EVR) and an EGR Valve Position
(EVP) sensor |
| |
PFE is for vehicles with Pressure Feedback EGR (PFE) sensor and and an EGR Vacuum Regulator
(EVR) |
| |
If you don't know what type of system you have, go to the EVP heading, which is the first one. |
| |
There are pictures under the different headings to help you identify the system. |
| 31 |
EVP - (O, R, M) EVP signal is/was out of range - EVP |
| |
EVR - (O, R, M) EVP signal is/was low - EVR |
| |
PFE - (O, R, M) PFE signal is/was low - PFE |
| 32 |
EVP - (R) EGR not responding properly during test - EVP |
| |
EVR - (O, R, M) EVP signal is/was low - EVR |
| |
PFE - (R, M) PFE shows low pressure, EGR not seating or memory, not seating intermittently - PFE |
| 33 |
ALL - (O, M) EGR did not open/ respond during test or if memory code, did not open intermittently - EVP
EVR PFE |
| 34 |
EVP - (R) EGR did not respond properly during test - EVP |
| |
EVR - (O, R, M) EVP sensor is/was high - EVR |
| |
PFE - (O, R, M) PFE sensor is/was out of range - PFE |
| 35 |
EVP - (R) Engine RPM's too low to test EGR system - EVP |
| |
EVR - (O, R, M) EVP sensor signal is/was high - EVR |
| |
PFE - (O, R, M) PFE sensor signal is/was high - PFE |
| 38 |
Idle Tracking Switch signal was intermittent - ISC |
| 39 |
Transmission Torque Converter clutch not engaging - Transmissions |
| 40 |
SERIES FUEL/AIR INJECTION CODES ON VEHICLES WITH DUAL OXYGEN SENSORS REFER
TO THE RIGHT OR REAR SENSOR. EXCEPT: 1984-1988 3.8L ENGINES: LEFT SENSOR |
| 41 |
(R) System lean - Fuel control |
| |
(M) System was lean for 15 seconds or more (no HO2S switching) - Fuel control |
| 42 |
(R) System rich - Fuel control |
| |
(M) System was rich for 15 seconds or more (no HO2S switching) - Fuel control |
| 43 |
(R) HO2S sensor not reading (run at 2000 rpm's for 2 minutes and retest - check for HO2S switching) |
| |
(M) Was lean at WOT for 3 seconds or more - Fuel control |
| 44 |
AIR system inoperative - Air Injection |
| 45 |
AIR not Diverting (AIRD) - Air Injection |
| |
Electronic Ignition - coil primary circuit failure - Ignition Systems |
| 46 |
AIR Bypass (AIRB) not working - Air Injection |
| |
Electronic Ignition - primary circuit failure coil 2 - Ignition Systems |
| 47 |
Low flow unmetered air (check for small vacuum leaks, injector
o'rings, gaskets etc.) |
| |
E4OD transmission 4x4 switch/circuit problem - Transmissions |
| 48 |
High flow unmetered air (check for large vacuum leak, inlet hoses etc.) |
| |
Electronic Ignition - coil primary circuit failure - Ignition Systems |
| 49 |
Electronic Ignition - spout signal circuit problem - Ignition Systems |
| |
Transmission 1/2 shift problem - Transmissions |
| 51 |
Engine Coolant Temperature (ECT) sensor signal is/was too high - ECT |
| 52 |
Power Steering Pressure Switch/circuit open - PSP |
| |
(R) Did you turn wheel during test ? |
| 53 |
Throttle Position sensor too high - TPS |
| 54 |
Intake Air Temperature (IAT) or Vane Air Temperature (VAT) signal high - IAT VAT |
| 55 |
No or low (under 7.5 V) Key Power to PCM pin 5 |
| 56 |
Vane Air Flow
(VAF) or Mass Air Flow (MAF) sensor high - VAF MAF |
| |
Transmission Oil Temperature sensor too high - Transmissions |
| 57 |
Intermittent in Park/Neutral/ Switch or Neutral Pressure switch circuit - PNP or Transmissions |
| |
1990 Scorpio - Octane jumper installed (information only code - to inform you if it is installed or not) |
| 58 |
Idle Tracking Switch (ITS) signal problem ISC |
| |
Vane Air Temperature (VAT) sensor out of range or open - VAT |
| 59 |
AXOD 4/3 circuit fault - Transmissions |
| |
3.0L SHO - Low speed fuel pump circuit problem - Power / Fuel Pump Circuits |
| |
Transmission 2/3 shift problem - Transmissions |
| |
1990 Scorpio - Idle jumper installed (information only code - to inform you if it is installed or not) |
| 61 |
Engine Coolant Temperature (ECT) sensor is or was too low - ECT |
| 62 |
AXOD (KOEO only) 3/2 circuit short to ground - Transmissions |
| |
AXOD (KOEO AND KOER) 4/3 circuit failure - Transmissions |
| |
E4OD excessive converter clutch slippage - Transmissions |
| 63 |
Throttle Position Sensor (TPS) signal too low TPS |
| 64 |
Intake Air Temperature (IAT) or Vane Air Temperature (VAT) signal low or grounded - IAT VAT |
| 65 |
Check intermittent HO2S (signal or ground) - Fuel Control |
| |
(R) E4OD truck - cycle OD cancel switch after engine ID is received - Transmissions |
| |
1984 3.8L ONLY - O, M Battery voltage high (check for electrical system overcharging) |
| 66 |
Vane Air Flow (VAF) or Mass Air Flow (MAF) signal low - VAF MAF |
| |
Transmission Oil Temperature (TOT) signal low (possibly grounded) - Transmissions |
| 67 |
Park/Neutral circuit fault - PNP |
| |
Transmission Manual Lever Position (MLP) sensor circuit - Transmissions |
| |
(M) Intermittent Park Neutral Position (PNP) sensor fault - PNP |
| 68 |
Idle Tracking Switch (ITS) circuit (possibly grounded) - ISC |
| |
Vane Air Temperature (VAT) sensor out of range or grounded - VAT |
| |
3.8L AXOD -Transmission Temperature Switch (TTS) open - Transmissions |
| |
Electronic Transmission - Transmission Oil Temperature (TOT) sensor was overheated - Transmissions |
| 69 |
AXOD
transmission (O) 3/2 switch closed (possible short circuit) -
Transmissions |
| |
AXOD (M) 3/2 switch open (poss short to power) - Transmissions |
| |
E4OD 3/4 shift problem - Transmissions |
| 70 |
(M) 3.8L AXOD - Data link to instrument cluster fault. Service any other EEC codes, erase memory and retest. |
| |
If code is still present refer to instrument cluster diagnosis manual. |
| 71 |
(M) 1.9L TBI, 2.3L TBI, 2.5L TBI - ITS signal was grounded when throttle should have been opening ITS -
ISC |
| |
ISC motor problem or Idle Tracking Switch (ITS) signal wire shorted to ground - ISC |
| |
(M) 1.9L MFI - PCM re-initialized. Possible electrical noise, case ground or intermittent VPWR problem -
VPWR Diagnosis |
| |
(M) 3.8L AXOD - Data link to instrument cluster fault - See code 70 |
| 72 |
(R) No MAP or MAF change in "goose" test - retest, check for frequency or voltage change - MAP MAF |
| |
(M) 1.9L MFI - VPWR circuit to PCM was intermittent - VPWR Diagnosis |
| |
(M) 2.3L T/C - PCM re-initialized. Possible electrical noise, case ground or intermittent VPWR problem - VPWR Diagnosis |
| |
(M) 3.8L AXOD - Message center data link circuit fault - See code 70 |
| 73 |
(O) Rerun test, if 73 is still output replace TPS |
| |
(R) No Throttle Position Sensor (TPS) change in "goose" test. Must get at least 25% throttle rotation
- TPS |
| 74 |
Was brake depressed after engine ID was received ? |
| |
Brake On Off (BOO) signal open or short to ground - BOO |
| 75 |
Brake On Off (BOO) signal shorted to power - BOO |
| 76 |
Vane Air Flow (VAF) did not respond to "goose" test - VAF |
| 77 |
System did not receive "goose" test - see TESTS |
| 78 |
(M) VPWR circuit to PCM was intermittent or the PCM is bad VPWR Diagnosis |
| 79 |
A/C is on or pin 10 is shorted to power |
| 80 |
SERIES CODES GENERALLY ARE CIRCUIT PROBLEMS THAT COULD BE WIRING, RELAY OR SOLENOID RELATED. |
| |
ONLY ONE OF THE CIRCUITS LISTED UNDER THE CODE IS USED ON EACH VEHICLE. THE
FAULT IS IN WHICHEVER SOLENOID OR CIRCUIT IS PRESENT ON THE VEHICLE |
| 81 |
Boost control solenoid - Solenoids |
| |
AIRD solenoid - Solenoids and Air Injection |
| |
3.0L SHO - Inlet Air Solenoid - Solenoids |
| 82 |
2.3L TC - Fan Control wire shorted to ground - A/C and Fan Circuits |
| |
AIRB solenoid - Solenoids and Air Injection |
| |
3.8L SC - Super Charger Bypass Solenoid - Solenoids |
| 83 |
High Electro Drive Fan circuit fault - A/C and Fan Circuits |
| |
EGR Control solenoid - Solenoids |
| |
3.0L SHO - Low Speed Fuel Pump Relay circuit - Power / Fuel Pump Circuits |
| 84 |
EGR Vacuum Regulator - Solenoids |
| |
EGR cutoff solenoid - Solenoids |
| |
EGR Vent solenoid - Solenoids |
| 85 |
2.3L T/C Automatic - 3/4-4/3 Shift solenoid - Transmissions |
| |
CANP solenoid (ALL 1989) - Solenoids |
| |
(M) 1.9L MFI - System has corrected rich condition - Fuel control |
| 86 |
2.3L or 2.9L Truck - A4LD 3/4 shift solenoid - Transmissions |
| |
(M) 1.9L MFI - System has corrected lean condition - Fuel control |
| 87 |
(O) Fuel pump circuit fault (check inertia switch) - Power / Fuel Pump Circuits |
| |
Vehicles with 2BBL carb - Temperature Compensated Accelerator Pump Solenoid - Solenoids |
| |
(M) intermittent in fuel pump primary circuit - Power / Fuel Pump Circuits |
| |
NOTE: On some Escorts with automatic seat belts this code is normal IN MEMORY due to the wiring |
| 88 |
Throttle Kicker Solenoid - Solenoids |
| |
Variable Voltage Choke relay circuit fault - VVC |
| |
Fan Control circuit fault - A/C and Fan Circuits |
| |
A4LD - Converter Clutch Override solenoid - Transmissions |
| |
Electronic Ignition - IDM, DPI or spout circuit fault - Ignition Systems |
| 89 |
A4LD - Converter Clutch Override solenoid - Transmissions |
| |
AXOD Torque Converter Control solenoid circuit - Transmissions |
| |
Exhaust Heat Control (heat riser) solenoid circuit - Solenoids |
| 90 |
SERIES FUEL/AIR INJECTION CODES ON VEHICLES WITH DUAL OXYGEN SENSORS REFER TO THE LEFT OR FRONT SENSOR. EXCEPT: 1984-1988 3.8L ENGINES: RIGHT SENSOR |
| 91 |
(R, M) System running lean - Fuel control |
| |
Transmission SS 1 circuit/solenoid problem - Transmissions |
| 92 |
(R) System running rich - Fuel control |
| |
Transmission SS 2 circuit/solenoid problem - Transmissions |
| 93 |
(O) Throttle linkage binding or bad ISC motor ISC (R) HO2S not reading - Fuel control |
| |
Transmission TCC circuit/solenoid problem - Transmissions |
| 94 |
AIR system inoperative - Air Injection |
| |
Transmission TCC circuit/solenoid problem - Transmissions |
| 95 |
(O) Fuel pump: open, bad ground or always on - Power / Fuel Pump Circuits |
| |
(R) AIR not Diverting (AIRD) - Air Injection |
| |
(M) Possible bad fuel pump ground or open between fuel pump and pin 8 at PCM (Fuel Pump Monitor signal) - Power / Fuel Pump Circuits |
| 96 |
(O) Fuel pump monitor circuit shows no power - Power / Fuel Pump Circuits |
| |
(R) AIR Bypass (AIRB) not working - Air Injection |
| |
(M) (Service 87 code first if present) Fuel pump relay or battery power feed was open - Power / Fuel Pump Circuits |
| 97 |
E4OD OD cancel light circuit failure - Transmissions |
| 98 |
(R) Did not pass KOEO yet (Get 11 in KOEO first) |
| |
Transmission EPC circuit/solenoid failure - Transmissions |
| 99 |
(R) ISC needs to learn (Let idle for 2 minutes; Erase memory and retest) |
| |
Transmission EPC circuit/solenoid failure - Transmissions |
|
Definitions
|
| ACT |
Air Charge Temperature Sensor / BP See MAP / |
|
EEC |
Electronic Engine Control System |
| ECT |
Engine Coolant Temperature Sensor |
| EGR |
Exhaust Gas Recirculation Valve |
| EVP |
Valve Position Sensor |
| EGR / HEGO |
Heated Exhaust Gas Oxygen Sensor |
| KOEO |
Key On Engine Off |
| KOER |
Key On Engine Running |
| MAF |
Mass Air Flow Sensor |
| MAP |
Manifold Absolute Pressure Sensor |
| MLP |
Manual Lever Position |
| PCM |
Powertrain Control Module |
| SPOUT |
Distributor Jumper to Allow Initial Timing |
| TP |
Throttle Position Sensor |
