24 March, 2025 Allison WTEC II Fault Code : 21 PID: SPN: 12 FMI: Throttle position sensor, failed low Main code 21 indicates the throttle position sensor has been retracted or extended by its linkage into an error zone....
24 March, 2025 Allison WTEC II Fault Code: 13 PID: SPN: 12 FMI: ECU input voltage, low Main code 13 indicates either a high or low input voltage. Low voltage is less than 8V.In the event of...
24 March, 2025 Allison WTEC II Fault Code: 13 PID: SPN: 13 FMI: ECU input voltage, medium low None, DNA
24 March, 2025 Allison WTEC II Fault Code: 13 PID: SPN: 23 FMI: ECU input voltage, high Main code 13 indicates either a high or low input voltage. High voltage is over 35V.In the event of a...
24 March, 2025 Allison WTEC II Fault Code: 14 PID: SPN: 12 FMI: Oil level sensor, failed low Code 14 12 indicates the ECU has detected a voltage signal in the low error zone.OLS ground wire 135B is...
24 March, 2025 Allison WTEC II Fault Code: 14 PID: SPN: 23 FMI: Oil level sensor, failed high (not used) Code 14 23 is programmed out of all calibrations.