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Transmission and transfer case » AW-4 automatic transmission » Diagnosis and testing
Park/neutral position switch

SWITCH TESTING

Test switch continuity with an ohmmeter. Disconnect the switch and check continuity at the connector terminal positions and in the gear ranges indicated in Figure 3. Switch continuity should be as follows:

  •  Continuity should exist between terminals B and C with the transmission in Park and Neutral only (Fig. 41).
  •  Continuity should exist between terminals A and E with the transmission in Reverse (Fig. 41).
  •  Continuity should exist between terminals A and G with the transmission in third gear (Fig. 41).
  •  Continuity should exist between terminals A and H with the transmission in first and/or second gear (Fig. 41).

Fig. 40 Testing Transmission Valve Body Solenoid
Fig. 40 Testing Transmission Valve Body Solenoid

1 - OHMMETER
2 - WIRE TERMINAL
3 - SOLENOID

  • Continuity should not exist in D position

Fig. 41 Park/Neutral Position Switch Terminals And Testing
Fig. 41 Park/Neutral Position Switch Terminals And Testing

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