0105-11 Very High Inlet Manifold Temp (64)

116

TM 9-2320-312-24-2

Troubleshooting Section

Troubleshooting:

i01599629

0105-11 Very High Inlet

This diagnostic code indicates an excessive

Manifold Temp (64)

temperature in the air inlet manifold. This diagnostic

code does not indicate a problem with the ECM or

a problem with the temperature sensor for the air

SMCS Code: 1921-038

inlet manifold.

Conditions Which Generate This Code:

Test Step 1. Check for Diagnostic Codes.

The engine has been running for at least 30

A. Connect ET to the cab data link connector.

seconds.

B. Turn the keyswitch to the ON position. The

The coolant temperature is above 99 C (210 F).

engine should be off.

The air temperature for the air inlet manifold is

C. Check for any active diagnostic codes or logged

at110 C (230 F) or above 110 C (230 F).

diagnostic codes.

Note: This diagnostic code represents a critical

Expected Result:

event. This diagnostic code does not represent an

electronic system fault.

There should be no diagnostic codes that are

present.

System Response:

Results:

Electronic System Response The ECM response

depends on the programming of the Customer

OK Proceed to Test Step 2.

Parameter for "Engine Monitoring". The event code

will be logged if the "Engine Monitoring" is not

Not OK

programmed "OFF".

Repair: Repair the diagnostic codes that

The Check Engine Lamp will flash.

are present. For further details, refer to

Troubleshooting, "Troubleshooting With a

If "Engine Monitoring" is programmed to

Diagnostic Code".

"WARNING", The Check Engine Lamp will flash and

the Warning Lamp will illuminate continuously.

Ensure that the repair eliminates the problem.

If "Engine Monitoring" is programmed to "DERATE"

STOP.

or "SHUTDOWN", the Check Engine Lamp and the

Warning Lamp will flash.

Test Step 2. Inspect Electrical Connectors

And Wiring.

This diagnostic code requires a Customer Password

in order to be cleared.

A. Thoroughly inspect the following connectors:

Service Tool Display or Lamps Caterpillar

J2/P2 ECM engine harness connector

Electronic Technician (ET) will display "DIAG" next

to "Intake Manifold Air Temperature" on the status

J1/P1 ECM vehicle harness connector

screen while the diagnostic code is active.

connector terminals for the sensor

Engine Response If the "Engine Monitoring" is

programmed to "WARNING", there is no effect on

Refer to Troubleshooting, "Electrical Connectors

engine power.

- Inspect" for details.

If the "Engine Monitoring" is programmed to

B. Perform a 45 N (10 lb) pull test on each of the

"DERATE" or "SHUTDOWN", engine speed is limited

wires in the ECM connector that are associated

to a maximum of 1350 rpm. The vehicle speed is

with the appropriate diagnostic code.

limited to a maximum of 72 km/h (45 mph), and the

power is limited. The engine will shut down if the

C. Check the ECM connector (allen head screw) for

conditions exist for a long enough period in the

the proper torque of 6.0 Nm (55 lb in).

"SHUTDOWN" mode.