SR/KA Neutral switch - normally open? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

LoSt180 · 07-16-2018, 11:56 AM

The ECM detects the park/neutral position when continuity with ground exists.

When the gear position is in neutral, the PNP switch is "ON".

In electrical terms, the switch "closes" the circuit when in neutral, and "opens" the circuit in any other position.

Here's the circuit diagram for the neutral position switch. Drawing is the same for all S-chassis manuals I have on hand.

The KA 5th position and reverse switches function the same way.

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07-16-2018, 11:56 AM	#5
LoSt180 Zilvia FREAK! Join Date: May 2013 Location: MD Posts: 1,049 Trader Rating: (18) Feedback Score: 18 reviews	The ECM detects the park/neutral position when continuity with ground exists. When the gear position is in neutral, the PNP switch is "ON". In electrical terms, the switch "closes" the circuit when in neutral, and "opens" the circuit in any other position. Here's the circuit diagram for the neutral position switch. Drawing is the same for all S-chassis manuals I have on hand. The KA 5th position and reverse switches function the same way.