Dtc P0544: Exhaust Gas Temperature Sensor 3 Circuit - Suzuki Grand Vitara 2011 Manual

1A-325 Engine General Information and Diagnosis: For Diesel Engine Model

DTC P0544: Exhaust Gas Temperature Sensor 3 Circuit

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, diesel particulate filter regenerations are not possible.
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
CO1
CC0
Troubleshooting
Check for the continuity, absence of interference resistance and insulation from +12 V for the following
connections:
• Between "C88-1" wire of exhaust gas temperature sensor 3 connector and "C86-29" terminal of ECM
connector
• Between "C88-2" wire of exhaust gas temperature sensor 3 connector and "C85-11" terminal of ECM
connector
Repair if necessary.
Check the continuity, absence of interference resistance and insulation from vehicle body ground of the following
connection:
• Between "C88-1" wire of exhaust gas temperature sensor 3 connector and "C86-29" terminal of ECM
connector
Repair if necessary.
Check for the presence of ground on "C88-2" wire of the exhaust gas temperature sensor 3 connector.
Check the sensor resistance between "C88-1" and "C88-2" terminals of the exhaust gas temperature sensor 3
connector according to parameter "Diesel PF out Temp" on Data list of SUZUKI scan tool.
Exhaust gas temperature sensor resistance:
132500 Ω at 250 °C, 482 °F
52560 Ω at 300 °C, 572 °F
3529 Ω at 500 °C, 932 °F
1378 Ω at 600 °C, 1112 °F
If the recorded values do not correspond to the above values, replace the exhaust gas temperature sensor 3.
If the fault is still present, substitute a known-good ECM and recheck.
Detecting condition
Open circuit or short circuit to +12 V
Short circuit to vehicle body ground
S6JB0A1124118