Dtc P0243: Turbo / Super Charger Wastegate Solenoid "A" Malfunction - Suzuki GRAND VITARA 2005 Service Manual

Troubleshooting for CC.1: Short circuit to +12 V
Check the boost pressure sensor connections.
Check the ECM connections.
Repair if necessary.
Check the continuity and insulation against +12 volts of the following connections:
• Between "C76-3" wire of boost pressure sensor connector and "C86-42" terminal of ECM connector
• Between "C76-14" wire of boost pressure sensor connector and "C86-45" terminal of ECM connector
• Between "C76-4" wire of boost pressure sensor connector and "C86-19" terminal of ECM connector
Repair if necessary.
If the fault is still present, replace the boost pressure sensor.
Troubleshooting for 1.DEF: Inconsistency of signal
In the event of a number of faults with "DTC P0105: Manifold Absolute Pressure / Barometric Pressure Circuit
Malfunction: ", display parameter "Turbo Pressure" on Data List of SUZUKI scan tool.
If this value is locked at 1000 hPa and "Barometric Pres" on Data List of SUZUKI scan tool is displaying a
different value, replace the boost pressure sensor.
Check the boost pressure sensor connections.
Check the ECM connections.
Repair if necessary.
Check the following connections for continuity and make sure there is no interference resistance:
• Between "C76-3" wire of boost pressure sensor connector and "C86-42" terminal of ECM connector
• Between "C76-1" wire of boost pressure sensor connector and "C86-45" terminal of ECM connector
• Between "C76-4" wire of boost pressure sensor connector and "C86-19" terminal of ECM connector
Repair if necessary.
If the fault is still present, replace the boost pressure sensor.

DTC P0243: Turbo / Super Charger Wastegate Solenoid "A" Malfunction

CAUTION
!
This fault can result in a rapid and significant fouling of the diesel particulate filter.
NOTE
• Conditions for applying fault finding procedures to stored faults:
The fault is declared present after the engine is started or following a road test.
• If the fault is present:
– Turbocharging is no longer authorised.
– The EGR function is inhibited.
– The Injection warning light (gravity 1 warning light) is lit.
• Use service wire for all operations on the ECM connectors.
• Order of priority in the event of more than one fault:
– Firstly, deal with fault "DTC P1431: Clogged Particulate Filter Failures Malfunction: " if it is
present or stored.
Detecting Condition
Displaying on SUZUKI scan tool
1.DEF
2.DEF
Engine General Information and Diagnosis:
Detecting condition
Pressure too low
Pressure too high
1A-45
S5JB0B1104103