P0743 OBD Trouble Code
1 result found
| Type | Powertrain - Transmission - ISO/SAE Controlled |
|---|---|
| Description | TCC Enable Circuit Electrical (4L30-E Transmission) |
| Cause | Engine running with the TCC commanded off, TCM high side driver closed, then the PCM detected a short to ground (TCM detected less than 2.45v for 0.18 seconds on the control circuit), or an open circuit (TCM detected 2 45-3 53 volts for 0.18 seconds on the control circuit), or it detected a short to battery (TCM detects more than 4 02 volts for 0.18 seconds on the control circuit) |
Try also: https://www.obd-codes.com/p0743
