Scania fault code 12544
Code 12544 is used by 4 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMU
CAN timeout to VCB fan A
VCB fan does not recieve communication from EMU
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COO Coordinator
High coolant temperature warning lamp
Conflicting signals in the high coolant temperature warning lamp circuit. The fault code is generated: - if the lamp comes on even though coordinator pin 6 measures 24 V - if the l…
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OCS
Lambda sensor T137 upstream of the catalytic converter
Fault in lambda sensor heating.
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OCE
Lambda sensor T137 upstream of the catalytic converter
Fault in lambda sensor heating.
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