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P1825 Diagnostic Trouble Code Discussion for August 2006

Internal Mode Switch - Invalid Range


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Trouble Ticket Help Requests for DTC P1825
Help Request Posted
2000 Chevrolet Impala 3.4L No Start VIN: 2G1WF55K8Y
P1825: Internal Mode Switch - Invalid Range. This car originally came in with a vent valve code. Traced out wiring and found broken wire where harness loops under A/C accumulator. After repairing wire, found that car would not crank over. Tested circuits and found PCM was not grounding starter relay. Man...
August 21, 2006
2000 Chevrolet Impala 3.4L No Start VIN: 2G1WF55K8Y
P1825: Internal Mode Switch - Invalid Range. This car originally came in with a vent valve code. Traced out wiring and found broken wire where harness loops under A/C accumulator. After repairing wire, found that car would not crank over. Tested circuits and found PCM was not grounding starter relay. Man...
August 21, 2006