178 KENR6933
Troubleshooting Section
i02662105
Wastegate Solen oid - Test
System Operation Description:
Use this procedure under the following
conditions:
Use this procedure if another procedure has directed
you here. Use this procedure if any of the following
diagnostic co
des are active:
•
0526-05 Turbo Wastegate Drive current below
normal
•
0526-06 Turbo Wastegate Drive current above
normal
•
0526-07 Turbo W astegate Drive not responding
properly
Some engine models will have a turbocharger with
an electroni
cally controlled wastegate. Typically, the
wastegate is a mechanical valve that is used in the
turbocharger in order to regulate the intake manifold
pressure to
asetvalue.
The control system for the electronically controlled
wastegate p
recisely regulates the intake manifold
pressure by using a wastegate regulator to control
the wastegate.
Therequiredintakemanifoldpressureiscalculated
by the software that is contained in the Electronic
Control Mo
dule (ECM). The ECM uses the wastegate
regulator to control the wastegate in order to provide
the precise value of intake manifold pressure. The
wastegate
regulator is controlled by a PWM signal
from the ECM.
Table 41
Pin Connections
Sensor Pin
Function
P2 Pin Connection
1
Ground
44
2
Signal
17
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