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Home >> Mazda >> 1979 >> GLC Sport >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Transmission Spark Delay Timing Control >> Testing >> Overdrive Switch

Overdrive Switch

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Unplug overdrive switch connector (located on rear of transmission). Connect ohmmeter to switch terminals. Place gearshift lever in 4th gear. Continuity should exist (switch is on). Place gearshift lever in 5th gear. No continuity should exist (switch is off). If switch does test as indicated, it must be replaced.

Fig 1: Transmission Spark Delay Timing Control System
G09310047Courtesy of MAZDA MOTORS CORP.
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