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error code 27 Fault in injector driver interface circuit

Old Oct 26, 2013 | 02:36 AM
  #1  
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pwb
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From: Norway
Year: 1993
Model: Grand Cherokee
Engine: 4.0L I6
Default error code 27 Fault in injector driver interface circuit

How does the ECU see this error? could it be bad connection on the wire to the injectors or what is driver interface?
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Old Oct 26, 2013 | 10:55 PM
  #2  
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Any fault in the injector circuit from bad wiring to a failing coil in the injector will cause that.
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