Error, fault and alarm codes of products - what each code means, its causes and what to do - read from the manufacturers’ manuals, with the manual page each answer comes from.
Engine coolant temperature lamp short to ground means the coolant temperature warning lamp circuit is shorted to ground, causing it to malfunction. The manual lists no action for this code.
Engine coolant temperature lamp open/short to B+ indicates that the coolant temperature warning lamp has an electrical fault preventing proper signaling. The manual lists no action for this code.
Engine overspeed lamp short to ground means the engine overspeed warning lamp circuit is shorted to ground, causing it to fail. The manual lists no action for this code.
Engine overspeed lamp open/short to B+ means the engine overspeed warning lamp has an electrical fault preventing it from signaling properly. The manual lists no action for this code.
Action alert lamp open circuit indicates that the action alert lamp’s electrical circuit is broken or disconnected. The manual lists no action for this code.
Action alert lamp short to ground means the action alert lamp circuit is shorted to ground, causing it to malfunction. The manual lists no action for this code.
Action alert lamp open/short to B+ indicates that the action alert lamp has an electrical fault preventing it from functioning properly. The manual lists no action for this code.
Atmospheric pressure sensor short to ground means the atmospheric pressure sensor circuit is shorted to ground, leading to incorrect readings. The manual lists no action for this code.
Atmospheric pressure sensor open/short to B+ indicates an atmospheric pressure sensor has a fault in its power supply connection. The manual lists no action for this code.
Turbo outlet pressure sensor short to ground means the turbocharger pressure sensor circuit is shorted to ground, causing inaccurate readings. The manual lists no action for this code.
Turbo outlet pressure sensor open/short to B+ means the turbocharger pressure sensor is not functioning correctly due to an electrical fault. The manual lists no action for this code.
Check programmable parameters indicates that the engine’s programmable settings may be incorrect or corrupted. The manual lists no action for this code.
5 volt Sensor power supply short to ground means a sensor's power circuit is shorted to ground, causing a voltage issue. The manual lists no action for this code.
5 volt Sensor power supply open/short to B+ means a sensor is not receiving or is incorrectly supplying 5 volts due to an electrical fault. The manual lists no action for this code.
Engine timing calibration required indicates that the engine's timing needs to be recalibrated for proper performance. The manual lists no action for this code.