Park/Neutral Switch (Swift A/T)
- Engine ECM receives park/neutral gear selection information from automatic transmission ECM on terminal A17. Check input signal by measuring voltage between ground and automatic transmission ECM terminal A17.
- With ignition on and transmission in Park or Neutral, voltmeter should indicate less than 2 volts. With transmission in any other gear, voltmeter should indicate battery voltage. Replace park/neutral switch if it does not test as described.