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

DTC P0575

Precautions: Precautions for Diagnosing Trouble · General safety (00)

DTC Detecting Condition and Trouble Area
DTC detecting condition Trouble area
P0575: Cruise Control Input Circuit
This DTC is detected if any one of the following conditions is met.
•Signal voltage of cruise control switch signal circuit is higher than specified voltage for specified time continuously.
•ON signals of any or all of following switches of cruise control system are detected for longer than specified time.
—CRUISE (main) switch
—LIMIT switch
—CANCEL switch
—RES/+ switch
—SET/– switch
•Cruise control switch circuit / connector
•Cruise control switch
•Contact coil
•ECM
Circuit Diagram
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[A]: M16A model [G]: ECM connector (D16AA model) (View: [a]) 4. SET/– switch
[B]: K14C model A1: Cruise control switch signal circuit 5. LIMIT switch
[C]: D16AA model A2: Cruise control switch ground circuit 6. CANCEL switch
[D]: Contact coil connector (View: [a]) 1. ECM 7. CRUISE (main) switch
[E]: ECM connector (M16A model) (View: [a]) 2. Cruise control switch 8. Contact coil
[F]: ECM connector (K14C model) (View: [a]) 3. RES/+ switch    
DTC Troubleshooting
Step Action Yes No
1
Parameter check
1)Connect SUZUKI scan tool to DLC when ignition is “OFF”.
2)Set ignition “ON”.
3)Check “Cruise CANCEL Switch”, “Cruise RES/ACC Switch”, “Cruise SET/COAST Switch” and “Cruise ON/OFF Switch” displayed on SUZUKI scan tool. icon 
Is check result OK?
Check for intermittent trouble. icon 
Go to Step 2.
2
Cruise control switch circuit check
1)Check that ignition is “OFF”.
2)Disconnect “E01” and “G371” connectors.
3)Check for proper terminal connection to “E01” and “G371” 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” circuit terminal and other terminals at “G371” connector: infinity
•Resistance between “A2” circuit terminal and other terminals at “G371” connector: infinity
•Voltage of “A1” and “A2” circuits: approx. 0 V (When ignition is “ON”)
Is check result OK?
Go to Step 3.
Repair or replace defective wire harness.
3
Contact coil circuit check
1)Disconnect “S62” connector.
2)Check the following points.
•Resistance between “S62-5” terminal and “S173-5” terminal of contact coil connector: less than 1 Ω
•Resistance between “S62-6” terminal and “S173-6” terminal of contact coil connector: less than 1 Ω
•Resistance between “5” terminal and other terminal at “S173” connector: infinity
•Resistance between “6” terminal and other terminal at “S173” connector: infinity
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Is check result OK?
Go to Step 4.
Replace contact coil. icon 
4
Cruise control switch check
1)Check cruise control switch. icon 
Is check result OK?
Replace ECM and recheck DTC.
•M16A model: icon 
•K14C model: icon 
•D16AA model: icon 
Replace cruise control switch. icon