Suzuki Vitara (LY) 2016-2017 · Service Manual K14C · Diagnostic Information and Procedures

DTC P2263

Precautions: General safety (00)

DTC Detecting Condition and Trouble Area
DTC detecting condition Trouble area
P2263: Turbocharger / Supercharger Boost System Performance
Any of the following conditions is met.
•Measured boost pressure in intercooler outlet pipe is far above targeted boost pressure for specified time.
•Measured boost pressure in intercooler outlet pipe is far below targeted boost pressure for specified time.
(1 D/C detection logic)
•Boost pressure sensor and/or its circuit
•Air intake system
•ECM
Circuit Diagram
img
[A]: ECM connector (View: [a]) A3: Boost pressure sensor with IAT sensor-2 ground circuit 2. Boost pressure sensor
A1: Boost pressure sensor power supply circuit B1: IAT sensor-2 signal circuit 3. IAT sensor-2
A2: Boost pressure sensor signal circuit 1. ECM 4. To ECT sensor
DTC Confirmation Procedure
WARNING:
If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur.
•Select a level road with no traffic to minimize the risk of accident.
•Perform the test extremely carefully.
•Perform the road test with 2 persons, a driver and a tester.
NOTE:
Check that the following DTCs are not detected in this “DTC Confirmation Procedure”.
•Boost pressure sensor (P0237 and P0238)
•WGV-VSV (P0244, P0245 and P0246)
•MAF sensor (P0102 and P0103)
•MAP sensor (P0107 and P0108)
•ABV-VSV (P0033, P0034 and P0035)
•Barometric pressure sensor (P2228 and P2229)
•TP sensor (P0122, P0123, P0222, P0223 and P2135)
1)Accelerate vehicle under the following conditions for 10 sec.
•Shift position: 6th gear (M/T model) or D range (A/T model)
•Accelerator pedal: Depressed by a half of completely depressed position
•Engine speed: 3,000 rpm or more
DTC Troubleshooting
Step Action Yes No
1
Was “Engine and Emission Control System Check” performed?
Go to Step 2.
2
DTC check
Is there any DTC(s) other than P2263?
Go to troubleshooting for applicable DTC.
Go to Step 3.
3
Air intake system check
1)Check air intake system for clogging or leakage.
Is check result OK?
Go to Step 4.
Repair or replace defective part.
4
Boost pressure sensor circuit check
1)Check “A1”, “A2” and “A3” circuits according to Step 2 – 4 under DTC P0237 / P0238:K14C.
Is check result OK?
Go to Step 5.
Repair or replace defective wire harness.
5
Boost pressure sensor check
1)Check boost pressure sensor. icon 
Is check result OK?
Replace ECM and recheck DTC. icon 
Replace boost pressure sensor with IAT sensor-2. icon