Dtc P2227 / P2228 / P2229: Barometric Pressure Circuit Malfunction - Suzuki Grand Vitara 2011 Manual

Step
7 Wire harness check
1) Turn ON ignition switch.
2) Measure voltage between "E23-55" terminal of ECM
connector and engine ground, between "E23-52"
terminal of ECM connector and engine ground.
Is each voltage 0 V?
8 Accelerator pedal position (APP) sensor assembly
check
1) 1)Check accelerator pedal position sensor referring to
"Accelerator Pedal Position (APP) Sensor Assembly
Inspection: For Petrol Engine Model in Section 1C".
Is output voltage within specified value?

DTC P2227 / P2228 / P2229: Barometric Pressure Circuit Malfunction

DTC P2227: Barometric Pressure Circuit Range / Performance
DTC P2228: Barometric Pressure Circuit Low
DTC P2229: Barometric Pressure Circuit High
System Description
Barometric pressure sensor is installed in ECM.
DTC Detecting Condition and Trouble Area
DTC detecting condition
DTC P2227:
Difference of barometric pressure value and intake manifold
pressure value is higher than specified value while engine
cranking.
(2 driving cycle detection logic)
DTC P2228:
Barometric pressure signal less than specified value is detected.
(1 driving cycle detection logic)
DTC P2229:
Barometric pressure signal more than specified value is detected.
(1 driving cycle detection logic)
Engine General Information and Diagnosis: For Petrol Engine Model 1A-218
Action Yes
Go to Step 8.
Substitute a known-
good ECM and recheck.
Trouble area
• Manifold absolute pressure sensor
performance problem
• Barometric pressure sensor in ECM
• Barometric pressure sensor in ECM
No
"WHT/BLU" wire or
"BLU/GRN" wire is
shorted to other circuit.
Replace accelerator
pedal position (APP)
sensor assembly.
S6JB0A1114079