Automatic Transmission - 4F50N Electronic Controls DTCS
AUTOMATIC TRANSMISSION - 4F50N ELECTRONIC CONTROLS DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Diagnostic Test | Description | Condition | Transmission Symptom |
|---|---|---|---|---|
| P0102 P0103 |
SELF-DIAGNOSTICS DTC | MAF Sensor Malfunction | MAF System Has A Malfunction Which May Cause A Transaxle Concern | Incorrect Shift Schedule, High/Low EPC Pressure. Incorrect TCC Engagement Scheduling. Symptoms Similar To A TP Failure |
| P0112 | SELF-DIAGNOSTICS DTC | IAT Indicates 254°F (125° C) - Short To Ground | Voltage Drop Across IAT Exceeds Scale Set For Temperature 125°C (254°F) | Incorrect EPC Pressure. Either High Or Low Which Will Result In Harsh Or Soft Shifts |
| P0113 | SELF-DIAGNOSTICS DTC | IAT Indicates -40°F (-40°C) - Open Circuit | Voltage Drop Across IAT Exceeds Scale Set For Temperature -40°C (-40°F) | Incorrect EPC Pressure. Either High Or Low Which Will Result In Harsh Or Soft Shifts |
| P0114 | SELF-DIAGNOSTICS DTC | IAT Out Of On-Board Diagnostic Range | IAT Temperature Higher Or Lower Than Expected During KOEO and KOER | Re-Run On-Board Diagnostics At Normal Operating Temperature |
| P0116 | SELF-DIAGNOSTICS DTC | ECT Out Of On-Board Diagnostic Range | ECT Temperature Higher Or Lower Than Expected During KOEO & KOER | Re-Run On-Board Diagnostics At Normal Operating Temperature |
| P0117 | SELF-DIAGNOSTICS DTC | ECT Indicates 254°F (125°C) - Short To Ground | Voltage Drop Across ECT Exceeds Scale Set For Temperature 125°C (254°F) | TCC Will Always Be Off Resulting In Poor Fuel Economy |
| P0118 | SELF-DIAGNOSTICS DTC | ECT Indicates -40°F (-40°C) - Open Circuit | Voltage Drop Across ECT Exceeds Scale Set For Temperature 125°C (254°F) | TCC Will Always Be Off Resulting In Poor Fuel Economy |
| P0122-P0123 | SELF-DIAGNOSTICS DTC | TP Sensor Malfunction | PCM Has Detected An Error. This Error May Cause A Transaxle Concern | Harsh Shifts, Abnormal Shift Patterns, TCC Does Not Engage, TCC Cycling |
| P0300-P0308, P0320 & P0340 | SELF-DIAGNOSTICS DTC | Electronic Ignition (EI) System Malfunction | EI System Has A Malfunction Which May Cause A Transaxle Concern | Engine Malfunction, No TCC Engagement |
| P0705 | D | Digital TR Sensor Circuit Short To Ground Or Open | Digital TR Sensor Circuits, Indicating An Invalid Pattern In TR_D. Condition Caused By A Short To Ground Or An Open In TR4, TR3A, TR2 and/or TR1 circuits, DTC P0705 Cannot Be Set By An Incorrectly Adjusted Digital TR Sensor | Increase in EPC Pressure (Harsh Shifts); Defaults To OD Or D For All Gear Positions; In OD Position, Transmission Is Stuck In D Or Manual 2nd |
| P0708 | D | Digital TR Sensor Circuit TR3A Open Circuit | Digital TR Sensor Circuit TR3A Reading 2.6- 5.0V (Open Circuit). This DTC Cannot Be Set By An Incorrectly Adjusted Digital TR Sensor | Increase In EPC Pressure, Defaults To OD Or D For All Gear Ranges |
| P0712 | B | TFT Indicates 340°F (171°C) - Short To Ground | Voltage Drop Across TFT Sensor Exceeds Scale Set For Temperature Of 340°F (171°C) | TCC & Stabilized Shift Schedule May Be Enabled Sooner After Cold Start. Harsh Or Soft Shifts |
| P0713 | B | TFT Indicates -45°F (-43°C) - Open Circuit | Voltage Drop Across TFT Sensor Exceeds Scale Set For Temperature Of -45°F (-43°C) | TCC & Stabilized Shift Schedule May Be Enabled Sooner After Cold Start. Harsh Or Soft Shifts |
| P0715 | F | Insufficient Input From TSS Sensor | PCM Detected A Loss Of TSS Signal During Operation | Incorrect TCC Engagements, Increased Engine RPM On Engagements, Harsh Shifts (MIL On) |
| P0717 | F | Intermittent Signal From TSS Sensor | PCM Detected A Loss Of TSS Signal During Operation | Incorrect TCC Engagements, Increased Engine RPM On Engagements, Harsh Shifts (MIL On) |
| P0718 | F | Erratic Or Noisy Signal From TSS Sensor | PCM Has Detected An Erratic Or No TSS Signal | N/A |
| P0720 (DTC does not apply to Continental models) |
G | Insufficient Input From OSS Sensor | PCM Detected A Loss Of OSS Signal During Operation | Possible Abnormal Shift Schedule |
| P0721 (DTC does not apply to Continental models) |
G | Erratic Or Noisy Signal From OSS Sensor | PCM Has Detected An Erratic OSS Signal | Abnormal Shift Schedule |
| P0722 (DTC does not apply to Continental models) |
G | Intermittent Signal From OSS Sensor | PCM Has Detected An Erratic Or No OSS Signal | Abnormal Shift Schedule |
| P0731 (DTC can be set by other non-electronic-related transmission hardware condition) |
A | No 1st Gear | Incorrect Gear Ratio While Commanding 1st Gear | Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position. Shift Errors May Also Be Due To Other Internal Transaxle Concerns (e.g., Stuck Valves, Damaged Friction Material). Refer to illustration "Identifying 4F50N Shift Solenoid Operation Chart" See SOLENOID VALVE BODY ASSEMBLY |
| P0732 (DTC can be set by other non-electronic-related transmission hardware condition) |
A | No 2nd Gear | Incorrect Gear Ratio While Commanding 2nd Gear | Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position. Shift Errors May Also Be Due To Other Internal Transaxle Concerns (e.g., Stuck Valves, Damaged Friction Material). Refer to illustration "Identifying 4F50N Shift Solenoid Operation Chart" See SOLENOID VALVE BODY ASSEMBLY |
| P0733 (DTC can be set by other non-electronic-related transmission hardware condition) |
A | No 3rd Gear | Incorrect Gear Ratio While Commanding 3rd Gear | Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position. Shift Errors May Also Be Due To Other Internal Transaxle Concerns (e.g., Stuck Valves, Damaged Friction Material). Refer to illustration "Identifying 4F50N Shift Solenoid Operation Chart" See SOLENOID VALVE BODY ASSEMBLY |
| P0734 (DTC can be set by other non-electronic-related transmission hardware condition) |
A | No 4th Gear | Incorrect Gear Ratio While Commanding 4th Gear | Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position. Shift Errors May Also Be Due To Other Internal Transaxle Concerns (e.g., Stuck Valves, Damaged Friction Material). Refer to illustration "Identifying 4F50N Shift Solenoid Operation Chart" See SOLENOID VALVE BODY ASSEMBLY |
| P0741 (DTC can be set by other non-electronic-related transmission hardware condition) |
C (Diagnose DTC by symptom. See appropriate symptom diagnosis See TROUBLE SHOOTING ) |
TCC Engagement Error | N/A | No TCC Operation Or TCC Slips |
| P0743, P1767 (Output circuit check, generated ONLY by electrical conditions) |
C | TCC Solenoid Circuit Failure During On-Board Diagnostic | TCC Solenoid Circuit Fails To Provide Voltage Drop Across Solenoid, Circuit Open Or Shorted Or PCM Drive Failure During On-Board Diagnostic | If Short Circuit, Engine Stalls At Low Idle. If Open Circuit, TCC Does Not Engage |
| P0750, P0753 (Output circuit check, generated ONLY by electrical conditions) |
A | SSA Solenoid Circuit Failure | Solenoid No. 1 Circuit Failed To Provide Voltage Drop Across Solenoid. Circuit Open Or Shorted Or PCM Drive Failure During On-Board Diagnostic | Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position. Refer to illustration "Identifying 4F50N Shift Solenoid Operation Chart" See SOLENOID VALVE BODY ASSEMBLY |
| P0751 | A | SSA Solenoid Functional Failure | Mechanical Or Hydraulic Failure Of The Solenoid Detected | Incorrect Gear Selection Depending On Failure Mode & Manual Lever Position. Refer to illustration "Identifying 4F50N Shift Solenoid Operation Chart" See SOLENOID VALVE BODY ASSEMBLY |
| P0755, P0758 (Output circuit check, generated ONLY by electrical conditions) |
A | SSB Solenoid Circuit Failure | Solenoid No. 2 Circuit Failed To Provide Voltage Drop Across Solenoid. Circuit Open Or Shorted Or PCM Drive Failure During On-Board Diagnostic | Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position. Refer to illustration "Identifying 4F50N Shift Solenoid Operation Chart" See SOLENOID VALVE BODY ASSEMBLY |
| P0756 | A | SSB Solenoid Functional Failure | Mechanical Or Hydraulic Failure Of The Solenoid Detected | Incorrect Gear Selection Depending On Failure Mode & Manual Lever Position. Refer to illustration "Identifying 4F50N Shift Solenoid Operation Chart" See SOLENOID VALVE BODY ASSEMBLY |
| P0760, P0763 (Output circuit check, generated ONLY by electrical conditions) |
A | SSC Solenoid Circuit Failure | Mechanical Failure Of The Solenoid Detected | Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position. Refer to illustration "Identifying 4F50N Shift Solenoid Operation Chart" See SOLENOID VALVE BODY ASSEMBLY |
| P0761 | A | SSC Solenoid Functional Failure | Mechanical Or Hydraulic Failure Of The Solenoid Detected | Incorrect Gear Selection Depending On Failure Mode & Manual Lever Position |
| P1100 & P1101 | SELF-DIAGNOSTICS DTC | MAF Sensor Malfunction | MAF System Has A Malfunction Which May Cause A Transaxle Concern | Incorrect Shift Schedule, High/Low EPC Pressure. Incorrect TCC Engagement Scheduling. Symptoms Similar To A TP Failure |
| P1111 | PCM On-Board Diagnostic System | System Pass Code, No Malfunction Detected | Malfunction Not Detected By Powertrain Control Module | N/A |
| P1112 | SELF-DIAGNOSTICS DTC | IAT Sensor Or Circuit Signal Intermittent | PCM Has Detected An Intermittent Signal | Incorrect EPC Pressure, Either High Or Low Which Will Result In Harsh Or Soft Shift |
| P1116 | SELF-DIAGNOSTICS DTC | ECT Out Of On-Board Diagnostic Range | ECT Temperature Higher Or Lower Than Expected During KOEO & KOER | Rerun On-Board Diagnostic At Normal Operating Temperature |
| P1117 | SELF-DIAGNOSTICS DTC | ECT Sensor Or Circuit Signal Intermittent | PCM Has Detected An Intermittent Signal | Incorrect EPC Pressure, Either High Or Low Which Will Result In Harsh Or Soft Shift |
| P1120 | SELF-DIAGNOSTICS DTC | TP Sensor Malfunction | PCM Has Detected An Error. This Error May Cause A Transaxle Concern | Harsh Shifts, Abnormal Shift Patterns, TCC Does Not Engage, TCC Cycling |
| P1351-P1364 | SELF-DIAGNOSTICS DTC | Electronic Ignition (EI) System Malfunction | EI System Has A Malfunction Which May Cause A Transaxle Concern | Engine Malfunction, No TCC Engagement |
| P1460 | SELF-DIAGNOSTICS DTC | ACC Switch Error | A/C or Defrost ON Condition May Result From A/C Clutch Being On During On-Board Diagnostic | Re-Run Diagnostics With A/C Off; If Stuck On, EPC Pressure Will Be Low |
| P1700 | Diagnose DTC by symptom. See appropriate SYMPTOM DIAGNOSIS See TROUBLE SHOOTING |
Internal Component Failure, Low One-Way Clutch Failure | Failure Of Low One-Way Clutch Failure, P1700 May Be Set By Low Fluid Level | No 1st, 2nd &/Or Reverse Gears, DTC P0731, P0732 May Also Set |
| P1702 | D | Digital TR Sensor Signal Intermittent | Refer To DTCs P0705 & P0708 | Refer To DTCs P0705 & P0708 |
| P1703 | SELF-DIAGNOSTICS DTC | BPP Switch Malfunction | Brake Not Cycled During KOER, Brake On/Off Circuit Failure | If stuck on or not connected, TCC will not engage at 1/3 or less throttle. If stuck off or not connected, TCC will not disengage when brake is applied. |
| P1704 | D | Digital TR Sensor Malfunction, Or Not In "P" Or "N" Position During KOEO/KOER | Digital TR Sensor Or Shift Cable Misadjusted Or Digital TR Circuit Failure | Incorrect Commanded EPC Pressure, TR Sensor Reading Incorrect Gear Position |
| P1705 | D | Digital TR Sensor Malfunction, Or Not In "P" Or "N" Position During KOEO/KOER | KOEO/KOER Not Run In PARK Or NEUTRAL | DTC Is Set, Re-Run On-Board Diagnostics With Manual Lever In "P" Or "N" Position |
| P1711 | B | TFT Sensor Not At Operating Temperature (240°F-25°C) During On-Board Diagnostics | Warm Or Cool Vehicle To Normal Operating Temperature | Vehicle Cold Or Overheated |
| P1713 | B | PCM Detects No TFT Change At Low Range During Operation | PCM Has Detected No TFT Change At Low-Range During Operation | May Flash TCIL |
| P1714 | H | SSA Solenoid Failure | Mechanical Failure Of The Solenoid Detected | Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position. Refer to illustration "Identifying 4F50N Shift Solenoid Operation Chart" See SOLENOID VALVE BODY ASSEMBLY |
| P1715 | H | SSB Solenoid Failure | Mechanical Failure Of The Solenoid Detected | Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position. Refer to illustration "Identifying 4F50N Shift Solenoid Operation Chart" See SOLENOID VALVE BODY ASSEMBLY |
| P1716 | H | SSC Solenoid Failure | Mechanical Failure Of The Solenoid Detected | Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position. Refer to illustration "Identifying 4F50N Shift Solenoid Operation Chart" See SOLENOID VALVE BODY ASSEMBLY |
| P1718 | B | PCM Detects No TFT Change At High Range During Operation | PCM Has Detected No TFT Change At High-Range During Operation | May Flash TCIL |
| P1740 | C | TCC Failure | Mechanical Failure Of The Solenoid Detected | No TCC Engagement |
| P1741 | C | Continuous Slip Error | Excessive Variations In Slip (Engine Speed Surge) Across The Torque Converter Clutch Detected | Engine Runs Rough/Vehicle Shudders, May Feel A Slight Sensation Of The Engine Running Rough At Road Loads (Approximately 35-40 MPH In 3rd Gear, 45-50 MPH In 4th Gear) |
| P1742 | C | TCC Solenoid Failed ON | TCC Solenoid Has Failed On By Electrical, Mechanical Or Hydraulic Concern | Harsh Shifts, May Stall Vehicle At Low Speeds, May Activate MIL |
| P1743 | C | TCC Solenoid Failed ON | TCC Solenoid Has Failed On By Electrical, Mechanical Or Hydraulic Concern | Harsh Shifts, May Stall Vehicle At Low Speeds, May Activate TCIL |
| P1744 | C | Excessive Slip Detected | Excessive Slip Detected During Full TCC Engagement | Torque Converter Disengaged, EPC Pressure At Minimum, May Activate MIL |
| P1746 (DTC can be set by other non-electronic-related transmission hardware condition) |
E | Open PCM Output Driver | Voltage Through EPC Solenoid Is Checked & Compared To A Voltage Through Solenoid After A Time Delay, Any Errors Are Recorded | Open Circuit - Causes Maximum EPC Pressure, Harsh Engagements & Shifts |
| P1747, P1760 (DTC can be set by other non-electronic-related transmission hardware condition) |
E | EPC Solenoid Circuit Failure, Shorted Circuit Or Output Driver | Voltage Through EPC Solenoid Is Checked & Compared To A Voltage Through Solenoid After A Time Delay, Any Errors Are Recorded | Short Circuit - Causes Failsafe EPC Pressure (Maximum Capacity), Harsh Engagements & Shifts |
| P1751 | H | SSA Solenoid Functional Failure | Mechanical Or Hydraulic Failure Of The Solenoid Detected | Incorrect Gear Selection Depending On Failure Mode & Manual Lever Position |
| P1756 | A | SSB Solenoid Functional Failure | Mechanical Or Hydraulic Failure Of The Solenoid Detected | Incorrect Gear Selection Depending On Failure Mode & Manual Lever Position |
| P1761 | A | SSC Solenoid Functional Failure | Mechanical Or Hydraulic Failure Of The Solenoid Detected | Incorrect Gear Selection Depending On Failure Mode & Manual Lever Position |
| P1779 | See CHECK TRANSAXLE LIGHT | Check Transaxle Light Circuit | PCM Has Detected A Malfunction In The Check Transaxle Light Circuit | Incorrect Lamp Illumination |
| P1780 | SELF-DIAGNOSTICS DTC | TCS Did Not Change States | TCS Not Cycled During Self-Test, TCS Circuit Open Or Shorted | TCS Not Cycled During KOER Self-Test, No OD Cancel When Switch Is Cycled |
| P1783 | B | Transmission Overheating Condition, Fluid Temperature Exceeded 300°F (149°C) | Increase In EPC Pressure During Overtemp Only | Increase In EPC Pressure |
| P1901 | F | TSS Signal Intermittent | PCM Has Detected An Intermittent TSS Signal | Torque Converter Engagements Erratic, 4th Gear Operation Erratic |