Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1993PICKUP F250, 2D PICKUP, 5.0 N, STANDARD, M5OD-R2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 10 (ENGINE CONTROLS - SELF-DIAGNOSTICS - EEC-IV - GASOLINE)SERVICE CODE DEFINITION CHARTS
1993 Ford Pickup F250, 2D Pickup, 5.0 N, Standard, M5OD-R2
Service Code Definition Charts
1993 Ford Pickup F250, 2D Pickup, 5.0 N, Standard, M5OD-R2SECTION Service Code Definition Charts
WARNING: This page is about a different car, the 1994 Ford RV Cutaway, 1994 Ford Econoline, 1994 Ford Cutaway, and 1994 Ford Club Wagon. However, it is still accessible from the selected car via links, so may be relevant.
2-DIGIT SERVICE CODE DEFINITION CHART
| DTC (1) | Diagnostic Trouble Code Definition | ||
|---|---|---|---|
| 11 orc | System PASS | ||
| 14 c | Engine rpm (RPM) sensor circuit fault (Diesel) | ||
| 15 o | PCM Read Only Memory (ROM) test failed | ||
| 15 c | PCM Keep Alive Memory (KAM) test failed | ||
| 19 o | Failure in PCM internal voltage | ||
| 22 orc | BARO sensor out of Self-Test range (Diesel) | ||
| 23 orc | Throttle Position (TP) Sensor out of Self-Test range | ||
| 26 or | Transmission Oil Temp (TOT) out of Self-Test range | ||
| 29 c | Insufficient input from Programmable Speedometer/ Odometer Module (PSOM) | ||
| 33 c | Throttle Position (TP) sensor noisy, harsh on line (Diesel) | ||
| 43 c | Throttle Position (TP) sensor below idle spec | ||
| 47 o | 4 x 4 switch is closed | ||
| 49 c | 1-2 shift error | ||
| 53 oc | TP above maximum voltage | ||
| 56 oc | Transmission Oil Temp (TOT) indicated -40°C (-40°F) circuit open | ||
| 59 c | 2-3 shift error | ||
| 62 c | Torque Converter Clutch error | ||
| 63 oc | TP circuit below minimum voltage | ||
| 65 r | Transmission Control Switch (TCS) circuit did not change states | ||
| 66 oc | Transmission Oil Temp. (TOT) indicated 143°C(290°F) /circuit grounded | ||
| 67 oc | Manual Lever Position (MLP) sensor out of range; A/C/ ON | ||
| 68 c | Transmission Oil Temp (TOT) transmission over temp (over-heated) (Diesel) | ||
| 69 c | 3-4 shift error | ||
| 74 rc | Brake On/Off (BOO) circuit open - not actuated | ||
| 91 o | Shift Solenoid 1 (SS1) circuit failure | ||
| 92 o | Shift Solenoid 2 (SS2) circuit failure | ||
| 93 o | Coast Clutch Solenoid (CCS) circuit failure | ||
| 94 o | Torque Converter Clutch (TCC) solenoid circuit failure | ||
| 97 o | Transmission Control Indicator Lamp (TCIL) circuit failure | ||
| 98 r | Hard fault present | ||
| 98 o | Electronic Pressure Control (EPC) driver open in PCM (Diesel) | ||
| 99 oc | Electronic Pressure Control (EPC) circuit failure | ||
| DTC'S | Unable to Self-Test or unable to output to DTC's | ||
| DTC's Not Listed | DTC's being displayed are not applicable to the vehicle being tested | ||
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3-DIGIT SERVICE CODE DEFINITION CHART
| DTC | Diagnostic Trouble Code Definition |
|---|---|
| 111 | System Pass |
| 112 | Intake Air Temp. (IAT) sensor circuit below minimum voltage/254°F indicated |
| 113 | Intake Air Temp. (IAT) sensor circuit above maximum voltage/-40°F indicated |
| 114 | Intake Air Temp. (IAT) higher or lower than expected |
| 116 | Engine Coolant Temp. (ECT) higher or lower than expected |
| 117 | Engine Coolant Temp. (ECT) sensor circuit below minimum voltage/254°F indicated |
| 118 | Engine Coolant Temp. (ECT) sensor circuit above maximum voltage/-40°F indicated |
| 121 | Closed throttle voltage higher or lower than expected |
| 121 | Indicates throttle position voltage inconsistent with the MAF sensor |
| 122 | Throttle Position (TP) sensor circuit below minimum voltage |
| 123 | Throttle Position (TP) sensor circuit above maximum voltage |
| 124 | Throttle Position (TP) sensor voltage higher than expected |
| 125 | Throttle Position (TP) sensor voltage lower than expected |
| 126 | MAP/BARO sensor higher or lower than expected |
| 128 | MAP sensor vacuum hose damaged/disconnected |
| 129 | Insufficient MAP/Mass Air Flow (MAF) change during dynamic response test KOER |
| 136 | System indicates lean (Bank #2) |
| 137 | System indicates rich (Bank #2) (KOER) |
| 157 | Mass Air Flow (MAF) sensor circuit below minimum voltage |
| 158 | Mass Air Flow (MAF) sensor circuit above maximum voltage |
| 159 | Mass Air Flow (MAF) higher or lower than expected |
| 167 | Insufficient throttle position change during dynamic response test |
| 171 | Fuel system at adaptive limits (Bank #1) |
| 172 | System indicates lean (Bank #1) |
| 173 | System indicates rich (Bank #1) |
| 175 | Fuel system at adaptive limits (Bank #2) |
| 176 | System indicates lean (Bank #2) |
| 177 | System indicates rich (Bank #2) |
| 179 | Fuel system at lean adaptive limit at part throttle, system rich (Bank #1) |
| 181 | Fuel system at rich adaptive limit at part throttle, system lean (Bank #1) |
| 184 | Mass Air Flow (MAF) higher than expected |
| 185 | Mass Air Flow (MAF) lower than expected |
| 186 | Injector pulse width higher than expected (with BARO sensor) |
| 186 | Injector pulse width higher or MAF lower than expected (without BARO sensor) |
| 187 | Injector pulse width lower than expected (with BARO sensor) |
| 187 | Injector pulse width lower or MAF higher than expected (without BARO sensor) |
| 188 | Fuel system at lean adaptive limit at part throttle, system rich (Bank #2) |
| 189 | Fuel system at rich adaptive limit at part throttle, system lean (Bank #2) |
| 211 | Profile Ignition Pickup (PIP) circuit failure |
| 212 | Loss of Ignition Diagnostic Monitor (IDM) input to PCM/SPOUT circuit grounded |
| 213 | SPOUT circuit open |
| 214 | Cylinder Identification (CID) circuit failure |
| 215 | PCM detected coil 1 primary circuit failure (EI) |
| 216 | pcm detected coil 2 primary circuit failure (EI) |
| 217 | PCM detected coil 3 primary circuit failure (EI) |
| 218 | Loss of Ignition Diagnostic Motor (IDM) signal - left side (dual plug EI) |
| 222 | Loss of Ignition Diagnostic Motor (IDM) signal - right side (dual plug EI) |
| 223 | Loss of Dual Plug Inhibit (DPI) control (dual plug EI) |
| 224 | PCM detected 1, 2, 3 or 4 primary circuit failure (dual plug EI) |
| 225 | Knock not sensed during dynamic response test KOER |
| 226 | Ignition Diagnostic Monitor (IDM) signal not received (EI) |
| 232 | PCM detected 1, 2, 3 or 4 primary circuit failure (EI) |
| 311 | Secondary Air Injection (AIR) system inoperative during KOER (Bank #1 w/dual HO2S) |
| 312 | Secondary Air Injection (AIR) misdirected during KOER |
| 313 | Secondary Air Injection (AIR) not bypassed during KOER |
| 327 | EGR (EVP/PFE/DPFE) circuit below minimum voltage |
| 328 | EGR (EVP) closed valve voltage lower than expected |
| 332 | Insufficient EGR flow detected |
| 334 | EGR (EVP) closed valve voltage higher than expected |
| 335 | EGR(PFE) sensor voltage lower than expected during KOEO |
| 336 | Exhaust pressure high/EGR (PFE) circuit voltage higher than expected |
| 337 | EGR(EVP/PFE) circuit above maximum voltage |
| 341 | Octane adjust service pin open |
| 411 | Cannot control RPM during KOER low RPM check |
| 412 | Cannot control RPM during KOER high RPM check |
| 452 | Insufficient input from Vehicle Speed Sensor (VSS) to Powertrain Control Module (PCM) |
| 511 | PCM Read Only Memory (ROM) test failure KOEO |
| 512 | PCM Keep Alive Memory (KAM) test failure |
| 513 | PCM internal voltage failure (KOEO) |
| 519 | Power Steering Pressure (PSP) switch circuit open KOEO |
| 521 | Power Steering Pressure (PSP) switch circuit did not change states KOER |
| 522 | Vehicle not in PARK or NEUTRAL during KOEO (%) |
| 528 | Clutch Pedal Position (CPP) switch circuit failure |
| 536 | Brake On/Off (BOO) circuit failure/not actuated during KOER |
| 538 | Insufficient RPM change during KOER dynamic response test |
| 538 | Invalid cylinder balance test due to throttle movement during test |
| 538 | Invalid cylinder balance test due to CID circuit failure |
| 539 | A/C on/Defrost on during KOEO |
| 542 | Fuel pump circuit open - PCM to motor ground |
| 543 | Fuel pump circuit open - battery to Powertrain Control Module (PCM) |
| 551 | Idle Air Control (IAC) circuit failure KOEO |
| 552 | Secondary Air Injection Bypass (AIRB) circuit failure KOEO |
| 553 | Secondary Air Injection Diverter (AIRD) circuit failure KOEO |
| 556 | Fuel pump relay primary circuit failure |
| 558 | EGR Vacuum Regulator (EVR) circuit failure |
| 565 | Canister Purge (CANP) circuit failure KOEO |
| 566 | 3-4 shift solenoid circuit failure KOEO (A4LD) |
| 569 | Auxiliary Canister Purge (AUX-CANP) circuit failure |
| 617 | 1-2 shift error |
| 618 | 2-3 shift error |
| 619 | 3-4 shift error |
| 621 | Shift Solenoid 1 (SS1) circuit failure KOEO |
| 622 | Shift Solenoid 2 (SS2) circuit failure KOEO |
| 624 | Electronic Pressure Control (ECP) circuit failure |
| 625 | Electronic Pressure Control (ECP) driver open in PCM |
| 626 | Coast Clutch Solenoid (CCS) circuit failure KOEO |
| 628 | Excessive torque converter clutch slippage |
| 629 | Torque Converter Clutch (TCC) solenoid circuit failure |
| 631 | Transmission Control Indicator Lamp (TCIL) circuit failure KOEO |
| 632 | Transmission Control Switch (TCS) circuit did not change states during KOER |
| 633 | 4 x 4L switch closed during KOEO |
| 634 | Manual Lever Position (MLP) voltage higher or lower than expected |
| 636 | Transmission Oil Temp (TOT) higher or lower than expected |
| 637 | Transmission Oil Temp (TOT) sensor circuit above maximum voltage/-40°F indicated |
| 638 | Transmission Oil Temp (TOT) sensor circuit below minimum voltage/ 290°F indicated |
| 639 | Insufficient input from Transmission Speed Sensor |
| 654 | Manual Lever Position (MLP) sensor indicating not in PARK during Self-Test |
| 655 | Manual Lever Position (MLP) sensor indicating not in NEUTRAL during Self-Test |
| 656 | Torque Converter Clutch slippage error |
| 668 | Manual Lever Position (MLP) circuit voltage above maximum voltage |
| 998 | Hard fault present - FMEM MODE |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.