Suzuki Grand Vitara 2011 Manual page 352

1A-283 Engine General Information and Diagnosis: For Diesel Engine Model
DTC No.
(SUZUKI scan
tool)
P0403 EGR Control Circuit
P0409 EGR Motor Malfunction
P0470* Differential Pressure Sensor Circuit*
P0480 Radiator Fan Low Control Circuit
P0481 Radiator Fan High Control Circuit
P0486 EGR Stroke Sensor Circuit
P0500 VSS Malfunction
P0530 A/C Refrigerant Pressure Sensor Circuit
P0544* Exhaust Gas Temperature Sensor 3 Circuit*
P0560 System Voltage
P0571 Brake Light Switch Circuit
P0575 Cruise Control Input Circuit
P0606 ECM Processor
P0611 ECM Performance
Ignition Switch Circuit
P0615
P0627 Fuel Pump Control Circuit
Inlet Throttle Valve Control Range/
P0638
Performance
P0641 Sensor Reference Voltage 1 Circuit
P0645 A/C Compressor Relay Control Circuit
P0651 Sensor Reference Voltage 2 circuit
P0670 Glow Plug Control Circuit
Detecting Item
Detecting Condition
(DTC will set when detecting:)
• EGR valve actuator circuit shorted to ground
circuit
• EGR valve actuator circuit open or shorted to
power circuit
• Excessive or insufficient EGR flow
• Poor performance of EGR valve
• Differential pressure sensor circuit shorted to
ground circuit
• Differential pressure sensor circuit open or
shorted to power circuit
• Poor performance of differential pressure sensor
Radiator fan relay No.1 control circuit low or high
input
Radiator fan relay No.2 and No.3 control circuit low
or high input
EGR stroke sensor signal low or high input
• Vehicle speed signal not inputted or incorrect
signal inputted
• Receiving error on CAN communication from
other control module
A/C refrigerant pressure sensor signal circuit low or
high input
• Exhaust gas temperature sensor 3 circuit
shorted to ground circuit
• Exhaust gas temperature sensor 3 circuit open
or shorted to power circuit
Power supply low or high input
Brake pedal switch signal (Brake switch 2) is
inconsistent with stop light switch signal (Brake
switch 1).
Inconsistent signal inputted
Engine control module internal faulty (system error)
• Poor performance of ECM
• IMA codes is not entered or erroneous
Power supply from ignition switch low or high input
Fuel pump relay control circuit low or high input
• Inlet throttle valve actuator circuit shorted to
ground circuit
• Inlet throttle valve actuator circuit open or
shorted to power circuit
• Inlet throttle valve position signal low or high
input
Sensor power source voltage is too high or too low
from ECM (Accelerator pedal position (APP) sensor
(main), boost pressure sensor, differential pressure
sensor)
A/C compressor relay control circuit low or high
input
Sensor power source voltage is too high or too low
from ECM (Accelerator pedal position (APP) sensor
(sub), EGR stroke sensor)
Detection an error of pre-heating control or glow
plug failure