Dtc P0105: Barometric Pressure Circuit; Dtc P0110: Iat Sensor Circuit Malfunction - Suzuki Grand Vitara 2011 Manual

DTC P0105: Barometric Pressure Circuit

NOTE
• Conditions for applying the fault finding procedure to stored faults:
The fault is declared present:
– When an attempt is made to start the engine
– With the engine running
• The barometric pressure sensor is built into the ECM, and cannot be separated.
If the fault is present:
– There is light smoke at the exhaust.
– The atmospheric pressure value changes to safe mode, "Barometric Pres" on Data List of SUZUKI
scan tool = 1000 hPa.
– The Injection warning light (gravity 1 warning light) is lit.
• Use service wire for all operations on the controller connectors.
Detecting Condition
Displaying on SUZUKI scan tool
D1
D2
D3
Troubleshooting
Disconnect the ECM and check the condition of its contacts and connector.
Repair if necessary.
Display the value of parameter "Turbo Pressure" on Data List of SUZUKI scan tool.
If this value is stuck at 1000 hPa, refer to interpretation of fault "DTC P0235: Boost Pressure Sensor Circuit: For
Diesel Engine Model".
If the fault is still present, substitute a known-good ECM and recheck.

DTC P0110: IAT Sensor Circuit Malfunction

NOTE
• Conditions for applying fault finding procedures to stored faults:
The fault is declared present after an attempted start, or with the engine running.
• If the fault is present:
– The air temperature value changes to safe mode, "Intake Air Temp" on Data List of SUZUKI scan
tool = 45.1 °C, 113.2 °F.
– The EGR function is inhibited.
• Use service wire for all operations on the ECM connectors.
Wiring Diagram
For wiring circuit and connector number, refer to "A-5 Engine and A/C Control System Circuit Diagram (DSL) in
Section 9A".
Detecting Condition
Displaying on SUZUKI scan tool
CC0
CO1
Engine General Information and Diagnosis: For Diesel Engine Model 1A-298
Signal outside upper limit
Signal outside lower limit
Inconsistent signal
Short circuit to vehicle body ground
Open circuit or short circuit to +12 V
Detecting condition
Detecting condition
S6JB0A1124093
S6JB0A1124094