Transmission Does Not Automatically Shift Into Neutral
The transmission does not automatically shift into neutral because of a possible failure in the Auto Neutral enabled feature. This feature requires that the following be programmed:
- Auto Neutral Enabled Status - Enabled
- Auto Neutral Switch Input Configuration - Switch to Ground, Switch to Battery (1 or 2), or Parking Brake
- Maximum Transmission Output Speed to Enabled Auto Neutral - above 0 RPM
Normal Operation - With the Auto Neutral Enable programmed to "Enabled", the transmission output speed below the programmed "Maximum Output Speed for Auto Neutral" value and the Auto Neutral Switch input open, the transmission should shift into NEUTRAL. When the switch is programmed to "Parking Brake", the parking brake must be activated.
Check the following:
- Check the Auto Neutral Switch status using Cat ET or a multimeter
- Check the Parking Brake Input status using Cat ET or a mutlimeter
Caterpillar Information System:
G3520C and G3520E Generator Set Engines Speed Control (Switch) - Test
G3520C and G3520E Generator Set Engines Generator Output Power Sensor - Set
G3520C and G3520E Generator Set Engines Timing - Calibrate
C13 On-highway Engine Exhaust Extension
G3600 Engines ECM Software - Install
C13 On-highway Engine Exhaust Extension
2006/11/27 An Updated Gasket for the Water Temperature Regulator Housing is Available {1355, 1380, 1393}
C11 and C13 Engines and 14M and 16M Motor Graders Sensor Signal (Analog, Active) - Test
G3520C and G3520E Generator Set Engines Control Module - Replace
G3520C and G3520E Generator Set Engines Electrical Connectors - Inspect
G3520C and G3520E Generator Set Engines ECM - Replace
G3600 Engines Prechamber - Clean/Inspect
G3520C and G3520E Generator Set Engines Indicator Lamp - Test
C11 and C13 Engines and 14M and 16M Motor Graders Sensor Supply - Test
G3304B and G3306B Engines Valve Lash Is Excessive
C15 On-Highway Engine Engine Oil Pan
C11 and C13 Engines and 14M and 16M Motor Graders Shutdown (Ground Level) - Test
C15 On-Highway Engine Engine Oil Pan
CX28, CX31 and CX35 On-Highway Transmissions Power Train Electronic Control System Transmission Does Not Automatically Shift Back Into Gear
C13 On-highway Engine Crankshaft
CX28, CX31 and CX35 On-Highway Transmissions Power Train Electronic Control System Engine Does Not Crank
CX28, CX31 and CX35 On-Highway Transmissions Power Train Electronic Control System Replaced Relay or Solenoid Does Not Operate
C13 On-highway Engine Main Bearing Journal
CX28, CX31 and CX35 On-Highway Transmissions Power Train Electronic Control System Transmission Does Not Respond to Shift Selector