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Mike S.
Mike S., ASE Certified Technician
Category: Ford
Satisfied Customers: 7011
Experience:  ASE Certified Master Technician
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Ron i just need the diagnstic code list 1990 ford xlt

Customer Question

ron i just need the diagnstic code list for a 1990 ford xlt
Submitted: 1 year ago.
Category: Ford
Expert:  Mike S. replied 1 year ago.

You can look them up here, https://actron.com/code-lookup

Expert:  Mike S. replied 1 year ago.

Here is the list though:

Code List

  • Code 11—System pass

  • Code 12—RPM unable to reach upper test limit

  • Code 13—RPM unable to reach lower test limit

  • Code 14—Pip circuit failure

  • Code 15—PCM read only memory test failed

  • Code 15—PCM keep alive memory test failed

  • Code 16—IDM signal not received

  • Code 18—SPOUT circuit open or spark angle word failure

  • Code 18—IDM circuit failure or SPOUT circuit grounded

  • Code 19—Failure in PCM internal voltage

  • Code 21—ECT out of self-test range

  • Code 22—BP sensor out of self-test range

  • Code 22—BP sensor or MAP out of range

  • Code 23—TP sensor out of self-test range

  • Code 24—ACT sensor out of self-test range

  • Code 25—Knock not sensed during dynamic test

  • Code 26—VAF/MAF out of self-test range

  • Code 26—TOT out of self-test range

  • Code 26—TOT sensor out of self-test range (E-400)

  • Code 28—Loss of IDM, right side

  • Code 29—Insufficient input from vehicle speed sensor

  • Code 31—PFE, EVP or EVR circuit below minimum voltage

  • Code 32—EVP voltage below closed limit

  • Code 33—EGR valve opening not detected

  • Code 34—EVP voltage above closed limit

  • Code 35—PFE or EVP circuit above closed limit

  • Code 41—HEGO sensor circuit indicates system lean

  • Code 41—No HEGO switching detected

  • Code 42—HEGO sensor circuit indicates system rich

  • Code 44—Thermactor air system inoperative–right side

  • Code 45—Thermactor air upstream during self-test

  • Code 45—Coil 1, 2 or 3 failure

  • Code 46—Thermactor air not bypassed during self-test

  • Code 47—4WD switch closed (E40D)

  • Code 48—Loss of IDM, left side

  • Code 49—1–2 shift error (E40D)

  • Code 51—ECT/ACT reads −40°F or circuit open

  • Code 52—Power steering pressure switch circuit open

  • Code 52—Power steering pressure switch always open or closed

  • Code 53—TP circuit above maximum voltage

  • Code 54—ACT sensor circuit open

  • Code 56—VAF or MAF circuit above maximum voltage

  • Code 56—TOT reads −40°F or circuit open (E40D)

  • Code 59—2–3 shift error (E40D)

  • Code 61—ECT reads 254°F or circuit grounded

  • Code 63—TP circuit below minimum voltage

  • Code 64—ACT sensor grounded or input reads 254°F

  • Code 65—Overdrive cancel switch open, no change seen (E40D)

  • Code 66—MAF sensor input below minimum voltage

  • Code 66—TOT grounded or reads 290°F (E40D)

  • Code 67—Neutral/drive switch open or A/C on

  • Code 67—Clutch switch circuit failure

  • Code 67—MLP sensor out of range or A/C on (E40D)

  • Code 69—3–4 shift error

  • Code 72—Insufficient MAF/MAP change during dynamic test

  • Code 73—Insufficient TP change during dynamic test

  • Code 74—Brake on/off switch failure or not actuated

  • Code 77—Operator error

  • Code 79—A/C on during self-test

  • Code 79—A/C or defrost on during self-test

  • Code 81—Air management 2 circuit failure

  • Code 82—Air management 1 circuit failure

  • Code 84—EGR vacuum solenoid circuit failure

  • Code 85—Canister purge solenoid circuit failure

  • Code 86—Shift solenoid circuit failure

  • Code 87—Fuel pump primary circuit failure

  • Code 88—Loss of dual plug input control

  • Code 89—Converter clutch solenoid circuit failure

  • Code 91—Shift solenoid 1 circuit failure (E40D)

  • Code 92—Shift solenoid 2 circuit failure (E40D)

  • Code 93—Coast clutch solenoid circuit failure (E40D)

  • Code 94—Converter clutch solenoid circuit failure (E40D)

  • Code 95—Fuel pump secondary circuit failure— PCM to ground

  • Code 96—Fuel pump secondary circuit failure—battery to PCM

  • Code 97—Overdrive cancel indicator light—circuit failure(E40D)

  • Code 98—Electronic pressure control driver open in PCM (E40D)

  • Code 98—Hard fault present

  • Code 99—Electronic pressure control circuit failure (E40D)

  • Code 111—System pass

  • Code 112—ACT sensor circuit grounded or reads 254° F

  • Code 113—ACT sensor circuit open or reads −40° F

  • Code 114—ACT outside test limits during KOEO or KOER tests

  • Code 116—ECT outside test limits during KOEO or KOER tests

  • Code 117—ECT sensor circuit grounded

  • Code 117—ECT sensor circuit below minimum voltage or reads 254°F

  • Code 118—ECT sensor circuit open

  • Code 118—ECT sensor circuit below maximum voltage or reads −40°F

  • Code 121—Closed throttle voltage higher or lower than expected

  • Code 122—TP sensor circuit below minimum voltage

  • Code 123—TP sensor circuit below maximum voltage

  • Code 126—BP or MAP sensor higher or lower than expected

  • Code 128—MAP vacuum circuit failure

  • Code 129—Insufficient MAF or MAP change during dynamic responded test

  • Code 144—No HEGO switching detected

  • Code 167—Insufficient TP change during dynamic response test

  • Code 171—Fuel system at adaptive limit, HEGO unable to switch

  • Code 172—HEGO shows system always lean

  • Code 173—HEGO shows system always rich

  • Code 174—HEGO switching time is slow

  • Code 179—Fuel at lean adaptive limit at part throttle; system rich

  • Code 181—Fuel at rich adaptive limit at part throttle; system lean

  • Code 182—Fuel at lean adaptive limit at idle; system rich

  • Code 183—Fuel at rich adaptive limit at idle; system lean

  • Code 211—PIP circuit fault

  • Code 212—Loss of IDM input to PCM or SPOUT circuit grounded

  • Code 213—Spout circuit open

  • Code 224—Erratic IDM input to processor

  • Code 225—Knocked not sensed during dynamic response test

  • Code 311—Thermactor air system inoperative

  • Code 312—Thermactor air upstream during self-test

  • Code 313—Thermactor air not bypassed during self-test

  • Code 327—EVP or DPFE circuit below minimum voltage

  • Code 328—EGR closed voltage higher than expected

  • Code 332—Insufficient EGR flow detected

  • Code 334—EGR closed voltage higher than expected

  • Code 337—EVP or DPFE circuit above maximum voltage

  • Code 411—Cannot control rpm during KOER low rpm check

  • Code 412—Cannot control rpm during KOER high rpm check

  • Code 452—Insufficient input from vehicle speed sensor

  • Code 511—EEC processor ROM test failed

  • Code 512—EEC processor Keep Alive Memory test failed

  • Code 513—Failure in EEC processor internal voltage

  • Code 519—Power steering pressure switch circuit open

  • Code 521—Power steering pressure switch did not change state

  • Code 525—Vehicle in gear or A/C on during self-test

  • Code 536—Brake on/off circuit failure, switch not actuated during KOER test

  • Code 538—Insufficient RPM change during KOER dynamic response test

  • Code 538—Operator error

  • Code 542—Fuel pump secondary circuit failure: PCM to ground

  • Code 543—Fuel pump secondary circuit failure: Battery to PCM

  • Code 552—Air management 1 circuit failure

  • Code 553—Air management 2 circuit failure

  • Code 556—Fuel pump primary circuit failure

  • Code 558—EGR vacuum regulator circuit failure

  • Code 565—Canister purge circuit failure

  • Code 569—Canister purge 2 circuit failure

  • Code 617—1–2 shift error (E40D)

  • Code 618—2–3 shift error (E40D)

  • Code 619—3–4 shift error (E40D)

  • Code 621—Shift solenoid 1 circuit failure

  • Code 622—Shift solenoid 2 circuit failure

  • Code 624—EPC solenoid or driver circuit failure

  • Code 625—EPC driver open in PCM

  • Code 626—Coast clutch solenoid circuit failure (E40D)

  • Code 627—Converter clutch solenoid circuit failure (E40D)

  • Code 628—Converter clutch error (E40D)

  • Code 629—Converter clutch control circuit failure

  • Code 631—Overdrive cancel indicator light circuit failure

  • Code 632—Overdrive cancel switch not changing states (E40D)

  • Code 633—4WD switch is closed

  • Code 634—MLP sensor voltage out of self-test range, A/C on

  • Code 636—TOT sensor voltage out of self-test range

  • Code 637—TOT sensor circuit above maximum voltage

  • Code 638—TOT sensor circuit below minimum voltage

  • Code 654—MLP sensor not in park position

  • Code 998—Hard fault present

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