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P1646 Diagnostic Trouble Code Discussion for October 2012

Hydraulic Cooling Fan Control Circuit Low


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Trouble Ticket Help Requests for DTC P1646
Help Request Posted
2003 Jaguar XJ8 4.0L MIL Lamp on VIN: SAJDA14CX3
P1646: Bank 1 sensor 1 o2 sensor. I have limited resources on this vehicle but im at a dead end.have replaced ecm,o2 sensor and still code returns quickly.checking resistance on all 4 wires and all the same 1.2 ohms.i can't read live data.i'm not getting definitive answers on shopkey as to whi...
October 15, 2012
2003 Jaguar XJ8 4.0L MIL Lamp on VIN: SAJDA14CX3
P1646: Bank 1 sensor 1 o2 sensor. I have limited resources on this vehicle but im at a dead end.have replaced ecm,o2 sensor and still code returns quickly.checking resistance on all 4 wires and all the same 1.2 ohms.i can't read live data.i'm not getting definitive answers on shopkey as to whi...
October 15, 2012