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P1647 Diagnostic Trouble Code Discussion for November 2008

Hydraulic Cooling Fan Control Circuit High

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Trouble Ticket Help Requests for DTC P1647
Help Request Posted
1999 Jaguar XK8 4.0L MIL Lamp on VIN: SAJGX2041X
P1647: Bank B upstream o2 sensor malfunction. Are the front sensors on this car wide band sensors? I'm getting 3.8v on the signal wires for both front sensors but they are 4 wire sensors. Alldata gives a spec of 3.5v. I called th Jaguar dealer but couldn't get an answer. the odd thing is that it can take ...
November 13, 2008