Scania fault code 1291
Code 1291 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
TMS Transmission Management System
Solenoid valve for 1st gear, short circuit
Short circuit to 30 voltage in the solenoid valve cable harness. If the fault code is also set for the 3rd gear solenoid valve, it may be the 3rd gear solenoid valve which is fault…
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COO Coordinator
Vehicle speed replacement values, poor signal status
Vehicle speed replacement values from the EBS control unit are received with poor signal status in the coordinator.
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