Automatic Transmission Electronic Controls Diagnosis DTCS
AUTOMATIC TRANSMISSION ELECTRONIC CONTROLS DIAGNOSIS DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Perform Test | Definition | Transmission Symptom |
|---|---|---|---|
| P0705 | C | Digital TR Sensor Circuit Short To Ground Or Open | Increase In Control Pressure (Harsh Shifts) |
| P0708 | C | Digital TR Sensor Circuit TR3A Open Circuit | Increase In Control Pressure (Defaults To "OD" Position In All Ranges) |
| P0712 | B | TFT Sensor Indicates 315°F (157°C) - Short To Ground | Firm Shift Feel |
| P0713 | B | TFT Sensor Indicates -40°F (-40°C) - Open Circuit | Firm Shift Feel |
| P0715 | E | Insufficient Input From TSS Sensor | Harsh Shifts, Harsh TCC Activation & Engagement |
| P0720 | E | Insufficient Input From OSS Sensor | Possible Abnormal Shift Schedule |
| P0721 | E | Erratic Or Noisy Signal From OSS Sensor | Abnormal Shift Schedule |
| P0731 (DTC can be set by other non-electronic-related transmission hardware condition.) | A | No 1st Gear | Improper Gear Selection, Shift Errors & RPM Higher Or Lower Than Expected |
| P0732 (DTC can be set by other non-electronic-related transmission hardware condition.) | A | No 2nd Gear | Improper Gear Selection, Shift Errors & RPM Higher Or Lower Than Expected |
| P0733 (DTC can be set by other non-electronic-related transmission hardware condition.) | A | No 3rd Gear | Improper Gear Selection, Shift Errors & RPM Higher Or Lower Than Expected |
| P0734 (DTC can be set by other non-electronic-related transmission hardware condition.) | A | No 4th Gear | Improper Gear Selection, Shift Errors & RPM Higher Or Lower Than Expected |
| P0735 | A | No 5th Gear | Improper Gear Selection, Shift Errors & RPM Higher Or Lower Than Expected |
| P0741 (DTC can be set by other non-electronic-related transmission hardware condition.) | Diagnose DTC by symptom. See appropriate SYMPTOM DIAGNOSIS under TROUBLE SHOOTING | TCC Engagement Error | No TCC Operation Or TCC Slips |
| P0743 (Output circuit check, generated ONLY by electrical conditions) | A | TCC Solenoid Circuit Failure | If Short Circuit, Engine Stalls At Low Idle, If Open Circuit, TCC Does Not Engage |
| P0765 & P0768 | A | SS4 Solenoid Circuit Failure | Incorrect Gear Selection Depending On Condition Mode & Manual Lever Position |
| P0791 & P0768 | E | Loss Of ISS Sensor Signal Failure | Harsh 2-3 Shift |
| P0794 & P0768 | E | Intermittent Signal From ISS Sensor | Harsh 2-3 Shift |
| P1000 | N/A | Incomplete OBD-II Testing | N/A |
| P1111 | N/A | System Pass Code | N/A |
| P1636 | SSx ISIG communication error. Replace PCM. | PCM Detects Error In ISIG Chip | Replace PCM |
| P1701 | Diagnose DTC by symptom. See appropriate SYMPTOM DIAGNOSIS under TROUBLE SHOOTING | Reverse Engagement Error | EPC Pressure Low, SSI Off, Engine Lacks Power |
| P1702 | C | Digital TR Sensor Signal Intermittent | DTCs P0705 & P0708 May Also Set; Refer To DTCs P0705 & P0708 |
| P1704 | C | Digital TR Sensor Malfunction, Or Not In "P" Or "N" Position During KOEO/KOER | Incorrect Commanded EPC Pressure, TR Sensor Reading Incorrect Gear Position |
| P1705 | C | Digital TR Sensor Malfunction, Or Not In "P" Or "N" Position During KOEO/KOER | DTC Is Set, Re-Run On-Board Diagnostics With Manual Lever In "P" Or "N" Position |
| P1711 | B | TFT Sensor Not At Operating Temperature During On-Board Diagnostics | Vehicle Cold Or Overheated |
| P1713 | B | PCM Detects No TFT Sensor Change At Low Range During Operation | Increased EPC Pressure, Incorrect TCC Engagement Scheduling, Harsh TCC Engagement, Harsh Shifts |
| P1714 | F | SS1 Solenoid Failure | If Shorted, No 4th Or 5th Gear; If Open, No 1st gear; SS1 Solenoid Mechanical Failure |
| P1715 | F | SS2 Solenoid Failure | If Shorted, No 1st Gear; If Open, No 3rd gear; Solenoid Mechanical Failure |
| P1716 | F | SS3 Solenoid Failure | Incorrect Gear Selection Depending On Condition, Mode & Manual Lever Position |
| P1717 | F | SS4 Solenoid Failure | Incorrect Gear Selection Depending On Condition, Mode & Manual Lever Position |
| P1718 | B | No Change In TFT Sensor High Range | Increased EPC Pressure, Incorrect TCC Engagement Schedule, Harsh Engagements & Shifts |
| P1729 | TG | 4X4L Switch Open Or Short Circuit | Early Or Delayed Shifts |
| P1740 | F | Mechanical Failure Of TCC Solenoid Detected | If Stuck On, Engine Stalls At Low Idle; If Stuck Off, No TCC Engagement |
| P1746 (DTC can be set by other non-electronic-related transmission hardware condition.) | D | EPC Solenoid Circuit Open | Maximum EPC Pressure, Harsh Engagements & Shifts |
| P1747 (DTC can be set by other non-electronic-related transmission hardware condition.) | D | EPC Solenoid Circuit Failure | If Short Circuit, Causes Low EPC Pressure, Limits Engine Torque, Slips In Gear & 3rd Gear Incorrect |
| P1780 | TB | TCS Not Changing States - Open Or Shorted | No Overdrive Cancel When Switch Is Cycled During KOER |
| P1781 | TG | 4X4L Switch Closed Or Shorted During KOEO | Early Or Delayed Shifts |
| P1783 | B | Transmission Overheating Condition - 270°F (127°C) | Increase In EPC Pressure |
| P1900 | E | Intermittent Signal From OSS Sensor | Harsh Shifts, Abnormal Shift Schedule Or No TCC Engagement |