Suzuki Vitara (LY) 2016-2017 · Service Manual M16A · Diagnostic Information and Procedures

DTC P2135

Precautions: General safety (00)

DTC Detecting Condition and Trouble Area
DTC detecting condition Trouble area
P2135: Throttle / Pedal Position Sensor / Switch “A” / “B” Voltage Correlation
Difference between TP sensor (main) signal voltage and TP sensor (sub) signal voltage is higher than specified value.
(1 D/C detection logic)
•TP sensor and/or its circuit
•Electric throttle body assembly
•ECM
Circuit Diagram
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[A]: ECM connector (View: [a]) B3: TP sensor (sub) signal circuit 4. Throttle actuator
A1: Throttle actuator control circuit (close) B4: TP sensor ground circuit 5. ECM
A2: Throttle actuator control circuit (open) 1. Electric throttle body assembly 6. Shield wire
B1: TP sensor power supply circuit 2. TP sensor (main)    
B2: TP sensor (main) signal circuit 3. TP sensor (sub)    
DTC Confirmation Procedure
NOTE:
Check that the following DTCs are not detected in this “DTC Confirmation Procedure”.
•TP sensor (P0122, P0123, P0222 and P0223)
1)Set ignition “ON” for 10 sec.
2)Keep accelerator pedal at fully depressed position for 2 sec.
3)Release accelerator pedal for 2 sec.
4)Repeat Step 2) – 3) 3 times.
DTC Troubleshooting
Step Action Yes No
1
Was “Engine and Emission Control System Check” performed?
Go to Step 2.
2
Wire harness check
1)Check the following points.
•“B1”, “B2” and “B4” circuits: Refer to Step 2 – 4 under DTC P0122 / P0123:M16A.
•“B3” circuit: Refer to Step 4 under DTC P0222 / P0223:M16A.
Is check result OK?
Go to Step 3.
Repair or replace defective wire harness.
3
TP sensor check
1)Check TP sensor for performance referring to “TP Sensor Performance Check” under Electric Throttle Body Assembly On-Vehicle Inspection:M16A.
Is check result OK?
Replace ECM and recheck DTC. icon 
Replace electric throttle body assembly.