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A4 Prestige
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Section 376 (Engine Control System (Diagnostic Codes (P1604-U0293) & Circuit Tests))
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SFI System
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DTC P261B: Engine Coolant Pump "B" Control Malfunction; DTC P261C: Engine Coolant Pump "B" Control Circuit Low; DTC P261D: Engine Coolant Pump "B" Control Circuit High [08/2013 - ]
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Component Operating Range
Component Operating Range
WARNING:
This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
P261B
Motor speed
900 rpm or more
P261C AND P261D
Engine water pump output signal
Signal input