Park/Neutral Switch (Aw-4 Auto. Trans.)
- Disconnect park/neutral switch. Ensure continuity exists between terminals "B" and "C" with transmission in Park or Neutral. See Fig 1 .
- Ensure continuity exists between terminals "A" and "E" with transmission in Reverse. See Fig 1 . Ensure continuity exists between terminals "A" and "G" with transmission in 3rd gear.
- Ensure continuity exists between terminals "A" and "H" with transmission in 1st or 2nd gear. See Fig 1 . If switch continuity tests are okay, check gearshift adjustment or back-up light circuit. If switch fails any continuity test, replace park/neutral switch.
NOTE:
Also see appropriate park/neutral switch input test procedures in TESTS W/CODES - 2.5L & 4.0L
article in this section.