Suzuki Vitara (LY) 2016-2017 · Service Manual Diagnostic Information and Procedures

DTC P081D

Precautions: Precautions for Diagnosing Trouble · Precautions for Servicing ENG A-STOP System · Precautions for Replacing ENG A-STOP Control Module · Precautions for Control Systems · General safety (00)

DTC Detecting Condition and Trouble Area
DTC detecting condition Trouble area
P081D: Neutral Input Circuit
Measured voltage of neutral position switch signal circuit is not as specified for specified time continuously.
•Neutral position switch circuit / connector
•Neutral position switch
•ENG A-STOP control module
Circuit Diagram
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[A]: ENG A-STOP control module connector (View: [a]) A2: Neutral position switch ground circuit 2. ENG A-STOP control module
A1: Neutral position switch signal circuit 1. Neutral position switch    
DTC Confirmation Procedure
1)Set ignition “ON”.
DTC Troubleshooting
Step Action Yes No
1
Neutral position switch signal and ground circuit check
1)Check that ignition is “OFF”.
2)Disconnect neutral position switch and “E24” connectors.
3)Check for proper terminal connection to neutral position switch and “E24” connectors.
4)If connections are OK, check the following points.
•Resistance of “A1” and “A2” circuits: less than 1 Ω
•Resistance between “A1” circuit and ground: infinity
•Resistance between “A1” and “A2” circuit terminals at neutral position switch connector: infinity
•Voltage of “A1” and “A2” circuits: approx. 0 V (When ignition is “ON”)
Is check result OK?
Go to Step 2.
Repair or replace defective wire harness.
2
Neutral position switch check
1)Check neutral position switch. icon 
Is check result OK?
Replace ENG A-STOP control module and recheck for DTC. icon 
Replace neutral position switch.
•M16A model: icon 
•K14C model: icon 
•D16AA model: icon