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P1189 Diagnostic Trouble Code Discussion for October 2007

Engine Oil Pressure Switch Circuit Malfunction


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Trouble Ticket Help Requests for DTC P1189
Help Request Posted
1999 Cadillac DeVille d'Elegance 4.6L No Start, no pcm data VIN: 1G6KE54Y8X
P1189: Engine Oil Pressure Switch Circuit Malfunction. ok cadillac gurus, i need your wisdom... i have this cadillac that came in on the hook. customer thought it was the fuel pump, so i checked for psi,had none. so i checked fuses, fuel pump fuse was good, jumped the relay and had around 55psi. got the above code...
October 09, 2007
1999 Cadillac DeVille d'Elegance 4.6L No Start, no pcm data VIN: 1G6KE54Y8X
P1189: Engine Oil Pressure Switch Circuit Malfunction. ok cadillac gurus, i need your wisdom... i have this cadillac that came in on the hook. customer thought it was the fuel pump, so i checked for psi,had none. so i checked fuses, fuel pump fuse was good, jumped the relay and had around 55psi. got the above code...
October 09, 2007