SDMO R570U - Page 175

Injector, Cylinder #6 (Code 7.6, SID 6/SPN 656)
Cause Reaction Remedy
• Electrical fault
• Faulty compression or injec-
tor
• Engine runs on 5 cylinders
• Abnormal sound
•
Reduced performance
• Check that the injector cables
are not damaged
• Check that the injector con-
nections are not damaged
• Check fuel supply pressure
• Check the valve clearance
• Do a compression test and
check cylinder #6
Camshaft Drive Speed Sensor (Code 2.5, SID21/SPN 636)
Cause Reaction Remedy
• No signal
• Abnormal frequency
• Fault in sensor
• Engine takes longer to start
than
normal. Engine runs nor-
mally when running
• Check that the engine speed
sensor connector is correctly
installed
• Check that the engine speed
sensor cable is not damaged
• Check that the engine speed
sensor is correctly installed in
the upper timing gear cover.
• Check engine speed sensor
function.
Flywheel Speed Sensor (Code 2.4, SID 22/SPN 637)
Cause Reaction Remedy
• No signal
• Abnormal frequency
• “Intermittent” signal from the
sensor
• Fault in sensor
•
Engine is very difficult to start
and runs roughly when it
starts
• Check that the sensor con-
nector is correctly installed
• Check that the engine speed
sensor cable is not damaged
• Check that the engine speed
sensor is correctly installed in
the flywheel housing
• Check engine speed sensor
function
TAD1650VE, TWD1643GE
Wastegate (SID 32/SPN 1188)
Cause Reaction Remedy
• Short circuit to positive (+) or
negative (-)
• Open circuit
• Wastegate damaged
mechanically
• Warning lamp lights up
•
Engine control unit limits
engine power
• Check that the wastegate
connector is properly
mounted
• Check that the wiring to the
wastegate is not damaged
• Check that the wastegate is
correctly mounted
• Check the wastegate
Fault Code Register
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