Diagnostic trouble code generation, reading diagnostic trouble codes with the diagnostics instrument
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Diagnostic trouble code generation, reading diagnostic trouble codes with the diagnostics instrument
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The control module sends trouble code and fault status information to the diagnostics instrument. The diagnostics instrument then presents a response, depending on the status of the fault. The earlier example with shifting solenoid S1 permanently short-circuited to ground entails the following: • If the fault is present right now, diagnostic trouble code P1852 will be assigned the prefix P and the diagnostics instrument display will show FAULT 01 P P1852 SOLENOID 1-2/3-4 SHORTING TO GROUND • If the fault has occurred previously but is not present right now, diagnostic trouble code P1852 will be assigned the prefix I and the diagnostics instrument display will show FAULT 01 I P1852 SOLENOID 1-2/3-4 SHORTING TO GROUND
