P1740

P1740 - TCC OR O/D SOLENOID PERFORMANCE

ALLDATA Editor's Note: Please note that there is a TSB regarding code P1740 for this vehicle. Refer to TSB #21-11-00 for more information.

Test 1:

Tests 2 - 8:

Tests 9 - 14:

Tests 15 - 20:

Tests 21 - 26:

Tests 27 - 31:

SYMPTOM
P1740 - TCC OR O/D SOLENOID PERFORMANCE

WHEN MONITORED
The Torque Converter 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 and/or O/D. This indicates a malfunctioning torque converter or overdrive clutch.

POSSIBLE CAUSES
- Fluid or fluid level problem
- Transmission wiring & connector
- Transmission internal problem
- Fuel level low
- Transmission temperature below 32 °F
- Transfer case in low range
- Transmission parts damaged
- Transmission parts damaged/worn
- Code not return during road test
- Engine RPM trouble codes present
- Misfire trouble codes set
- Output shaft speed trouble code present
- PTO engaged
- Throttle Position Sensor trouble codes set
- Fluid or fluid level problem
- Torque converter
- Transmission