1, 2 and 3 Digit Codes: 71

Name of Code:
71 - Manual Shift Overheat

When Monitored:
Whenever the engine is running.

Set Condition:
1. If the engine temperature exceeds 255°F while operating in AutoStick mode.

2. If the transmission temperature exceeds 275°F while in AutoStick mode

Theory of Operation:
Transmission and engine temperatures are monitored during vehicle operation. If conditions occur causing the engine or transmission to overheat, the AutoStick mode will be canceled, and a code will be set.

Transmission Effects:
The "3" position shift schedule that is used in non-AutoStick applications is substituted while operating in the AutoStick gear selector position. No limp-in mode occurs.

Possible Causes:
- Engine overheating
- Transmission Overheat
- Restricted transmission cooling system
- Transmission fluid overfilled
- Radiator fan not functioning properly
- Extended driving in low gear

NOTE:
Strenuous driving conditions may cause the vehicle to overheat. If the driver operates in or initiates AutoStick with an overheated vehicle, the code will be set.