Checking the main relay shut-off
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Checking the main relay shut-off
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When the engine control module gives the command for turning off the main relay, a clock starts to record the time from when the command was given until the main relay has actually been turned off.
If any of the following diagnostic trouble codes are generated, the CHECK ENGINE lamp will go on the next time the ignition is turned to ON.
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The time interval between the command and the main relay turning off is greater than 2 seconds. This means that the relay is defective and diagnostic trouble code P1626 will be generated.
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The power supply is cut during operation. This generates diagnostic trouble code P1625.
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