Code E161 - Lower Valve Error
Reason; Power amplifier could not detect presence of lower valve coil.
Possible Cause/
Corrective Action
Lower valve missing.
Open or short circuit in lower valve or wiring; master control relay missing
or stuck open; main contactor open circuit (especially after it has closed);
communication error due to PMT. Allow PMT to reboot before turning truck
ON. Bad power amplifier.
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