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P1110

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE.

P1110


Charge Air Bypass Valve. Performance Problems.


Fault symptoms


• CHECK ENGINE.


On-Board Diagnostics

Type of diagnosis:


- Continuous. However, it is interrupted once the fault criteria have been fulfilled and does not restart until the next driving cycle.


Enable criteria: (Conditions that must be fulfilled for diagnostics to be performed.)


- Global conditions for this diagnostic trouble code: When starting the engine, the atmospheric pressure must exceed 78 kPa and the temperature of the coolant and the intake air must exceed -7°C.

- Main relay voltage exceeding 10V. Engine speed above 3500 rpm. Intake pressure rapidly drops more than 3 kPa, after which the accelerator pedal is fully released. Charge air pressure exceeding 120 kPa. The bypass solenoid has been deactivated.


Fault criteria: (When enable criteria have been fulfilled, diagnostics will check if the fault criteria have been fulfilled.)


- Charge air pressure pulsating at 14-18 Hz with an amplitude exceeding 3 kPa. The criteria must be fulfilled on two separate occasions within 600s during the same driving cycle.


Dependents: (Once fault criteria have been fulfilled, a number of other diagnostics must report OK before the diagnostic trouble code can finally be generated.)


- P0106, P0107, P0108, P1105, P1106, P1107, P1108, P1530, P1531, P1532, P1631, P1632 and P1633.


System reaction to a fault: (Once the fault criteria have been fulfilled, certain measures will sometimes be taken.)


- None.




OK report: (This diagnosis may be included as a dependent to another diagnosis and must therefore report OK even if it is continuous. The OK report is also used in fault handling to count down the fault counter.)


- Enable criteria fulfilled and amplitude below 1 kPa. The criteria must be fulfilled on three consecutive occasions during the same driving cycle.


Fault handling: (Refer to section “Fault diagnosis, general” for more information.)


- Type III.


Diagnostic help

Fault diagnosis concerns a fault in the connecting control hoses, in the solenoid valve or in the bypass valve.

Diagnostic tool functions related to this fault:


• Diagnostic status for the diagnosis.

• Activation of the output for the solenoid valve that controls the bypass valve.


Refer also to the description of activations under ”Fault diagnosis, general” for more information.