KENR9126 111
Troubleshooting Section
Results:
•
OK – STOP.
i04012516
E539 High Intake Manifold Air
Temperature
Conditions
Which Generate This Code:
The Electronic Control Module (ECM) detects a high
air tempera
ture in the intake manifold under the
following conditions:
•
The engine
has been running for more than 3
minutes.
•
The tempe
rature of the coolant is more than 99 °C
(210 °F) and the intake manifold pressure is more
than 30 kPa (4.35 psi).
•
The trip level for the intake manifold air temperature
is reached.
•
Diagnostic code 0172-03 Intake Manifold Air
Temperature voltage above normal is not active.
•
Diagnostic code 0172-04 Intake Manifold Air
Temperature voltage below normal is not active.
Table 2
7
Intake M a nifold Air Temperature Trip Level Table
E539-1 E539-2
Tu rbocharged Engines (T) 139 °C (282 °F) 142 °C (287 °F)
T urbocharged Aftercooled
Engines (TA)
70° C (158° F) 79° C (174° F)
Delay to Activation 30 seconds 30 seconds
Reset Time 5 seconds 5 seconds
System Response:
If equipped, the warning lamp will come on and the
event code will be logged.
Possible Performance Effect:
E539-1
None
E539-2
The ECM will derate the power at 1 percent per
second.
Troubleshooting:
Refer to Troubleshooting, “Intake Air Temperature
Is Too High”.
Results:
•
OK – STOP.
To Next Page
Loading...
