Operation CHARM: Car repair manuals for everyone.
Home >> Mazda >> 1999 >> MX-5 Miata L4-1.8L DOHC >> Repair and Diagnosis >> Starting and Charging >> Starting System >> Neutral Safety Switch >> Testing and Inspection
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Neutral Safety Switch: Testing and Inspection

Inspection of Continuity

NOTE:
- Perform the following test only when detected.

1. Disconnect the negative battery cable.
2. Remove the neutral switch.




3. Inspect for continuity between the neutral switch terminals by using an ohmmeter.




Specification

4. If not as specified, replace the neutral switch. If neutral switch is okay but PID value is out of specification, inspect as follows:

Open circuit
- Power circuit (Neutral switch connector terminal A and PCM connector terminal 1V through common connector.)
- Ground circuit (Neutral switch connector terminal B and ground through common connector.)

Short circuit
- Neutral switch connector terminal A and PCM connector terminal 1V through common connector to ground.

5. Reconnect the neutral switch connector.
pro multis · About Operation CHARM