LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2021 >> Altima SL, FWD >> Repair and Diagnosis >> Electrical >> Body Electrical >> Power Distribution System >> System Description >> System >> System Description >> Input Signal And Output Signal
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Input Signal And Output Signal

Signal name

Input

Output

Description

Push-button ignition switch signal

Push-button ignition switch

BCM

When push-button ignition switch is pressed it transmits the status signal to the BCM.

Stop lamp switch signal

Stop lamp switch

BCM

The stop lamp switch detects that the brake pedal is depressed, and then transmits ON/OFF signal to BCM.

Detention switch signal

CVT shift selector (detent switch)

BCM

The detent switch is integrated into the CVT shift selector, and detects that the selector lever is locked in the P position then transmits ON/OFF signal to BCM.

Ignition relay-1 control signal

BCM

IPDM E/R

Inputs the ignition relay-1 control signal to IPDM E/R.

Ignition ON signal

BCM

IPDM E/R (CAN)

Inputs the ignition ON signal and transmits it via CAN communication.

Ignition status signal

BCM

IPDM E/R (CAN)

Inputs the ignition status signal and transmits it via CAN communication.

P/N position signal

Transmission range switch

IPDM E/R

The transmission range switch detects that shift selector is in the park or neutral position, and then transmits ON/OFF signal to IPDM E/R.