P1740

Tests 1 - 7:

Tests 8 - 14:

Tests 15 - 20:

Tests 21 - 26:

Tests 27 - 28:

SYMPTOM
P1740-TCC O/D SOLENOID PERFORMANCE

WHEN MONITORED
The Torque Convertor Clutch (TCC) and Overdrive Clutch (O/D) will be tested each time the PCM requests TCC engagement in 3rd gear and O/D.

SET CONDITION
The code will set if the expected RPM drop is not achieved while attempting to engage TCC or O/D. This indicates a malfunctioning torque convertor or overdrive clutch.

POSSIBLE CAUSES
- P1765 DTC present
- Camshaft DTC present
- Engine RPM DTC present
- Fuel level low
- Misfire DTC present
- Output speed DTC present
- Park/neutral DTC present
- PTO engaged (if equipped)
- Torque converter clutch DTC present
- TPS DTC present
- Transfer case in low range (if equipped)
- Transmission relay DTC present
- Transmission temperature too cold
- Intermittent
- Check transmission fluid-debris
- Check transmission fluid-stall
- 3 - 4 shift solenoid
- Oil pan contains excessive debris
- Shaft or seal damage
- TCC solenoid
- Torque converter