DTC P0579: Cruise Control Multi-Function Input Circuit Range/Performance: Notes

DTC P0579 CHART (MZI-3.7)

DTC P0579	Cruise control multi-function input circuit range/performance
DETECTION CONDITION	P0579 may set when the cruise control switch circuits are open, shorted to voltage or ground.
POSSIBLE CAUSE	Clock spring connector or terminals malfunction Clock spring malfunction Cruise control switch malfunction Short to ground in wiring harness between clock spring terminal 2B and PCM terminal 1N PCM connector or terminals malfunction Short to power supply in wiring harness between the following terminals: Clock spring terminal 2B-PCM terminal 1N Clock spring terminal 2C-PCM terminal 1L Open circuit in wiring harness between the following terminals: Clock spring terminal 2B-PCM terminal 1N Clock spring terminal 2C-PCM terminal 1L PCM malfunction
Courtesy of MAZDA MOTORS CORP.