DTC Advanced Diagnostics: P0035 (1.5L Engine)

DTC P0035:  Turbocharger Bypass Control Solenoid Valve Circuit High Voltage

General Description 

Courtesy of HONDA, U.S.A., INC.

The turbocharger bypass control solenoid valve is activated by the powertrain control module (PCM) to control the turbocharger bypass control solenoid valve timing to improve boost response during acceleration immediately after deceleration and boost pressure decrease during deceleration. The turbocharger bypass control solenoid valve is normally closed (negative pressure side). If the return signal is OPEN for a specified duration when the PCM outputs a CLOSE signal to the turbocharger bypass control solenoid valve, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type 

Execution	Continuous
Sequence	None
Duration	1 second or more
DTC Type	Two drive cycles, MIL off

Enable Conditions 

Condition	Minimum	Maximum
12 volt battery voltage [Battery]	10 V	-
State of the engine	Running

[ ]: HDS Parameter

Malfunction Threshold 

The return signal is OPEN for at least 1 second when the PCM outputs a CLOSE signal to the turbocharger bypass control solenoid valve.

Possible Cause 

Confirmation Procedure 

Operating Condition 

Start the engine, and let it idle for at least 1 second.

Diagnosis Details 

Conditions for setting the DTC 

When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the PCM memory. If the malfunction returns in the next (second) drive cycle, a Confirmed DTC, the freeze data, and the on-board snapshot are stored. The MIL does not come on.

Conditions for clearing the DTC 

The Pending DTC, the Confirmed DTC, the freeze data, and the on-board snapshot can be cleared with the scan tool clear command.