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Code Recording Procedure

Fig 1: Setting Main Function Switch To CODE Position

GM1212346

Courtesy of GENERAL MOTORS CORP.

Turn the main function switch to the CODE position.

IMPORTANT:

If power is interrupted prior to the recording of the seven-character code, the code will be lost and the flow rate test will need to be repeated.
The flow test must run for a minimum of 8-10 seconds and be above 0.5 gpm for a code to be generated.

Record TESTED flow rate, temperature, cycle and seven-character flow code information on the repair order.