0247-11 Brake Switch #2

137

TM 9-2320-312-24-2

Troubleshooting Section

Troubleshooting:

i01745419

0247-11 Brake Switch #2

Perform the following diagnostic procedure: "ECM

Memory - Test"

SMCS Code: 1129-ZS

Results:

Conditions Which Generate This Code:

OK STOP.

The engine is running and both of the following

conditions exist:

i01641234

The status of the service brake pedal position

0253-02 Check Customer or

switch 2 indicates that the brake pedal has been

System Parameters (56)

depressed.

The status of the service brake pedal position

SMCS Code: 1901-535

switch 1 indicates that the pedal has been

released.

Conditions Which Generate This Code:

System Response:

This condition indicates a "Customer Specified

Parameter" or a system configuration parameter that

Electronic System Response The diagnostic code

requires programming has not been programmed.

is logged into memory only if the engine is running.

Once this parameter has been programmed, the

This diagnostic code will prevent cruise control,

code may still be active. This can happen if there is

PTO operation, or idle operation. The check engine

yet another parameter that requires programming.

lamp will not illuminate for this diagnostic code.

System Response:

Engine Response The engine will disengage or the

engine will not allow setting of the cruise control,

Electronic System Response The fault is active

the PTO, or the idle speed.

only and the fault is not logged. If the Personality

Module Code of the new personality module does

Troubleshooting:

not match the code of the old personality module,

the engine is limited to low idle. If the "Rating

Perform the following diagnostic procedure: "Service

Number" has not been programmed, the ECM limits

Brake Pedal Position (Switch 2) Circuit - Test"

the engine to 89.5 kW (120.0 hp). When a new ECM

is initially powered up, the following parameters

Results:

must be programmed to avoid this diagnostic code:

OK STOP.

"Full Load Setting" (FLS)

"Full Torque Setting" (FTS)

i01641223

0252-11 Incorrect Engine

"Vehicle Speed Calibration"

Software (59)

"Rating Number"

SMCS Code: 1902-535; 7620-535

"Engine Serial Number"

Conditions Which Generate This Code:

Service Tool Display or Lamps Caterpillar

Electronic Technician (ET) will display a list of the

This condition occurs when the Personality Module

parameters that require programming. If two or more

is changed and the new module that is installed

Multi I/O parameters are programmed to the same

is for a different engine.

input/output, only one of the Multi I/O parameters

will be listed at one time. If the list of parameters

System Response:

exceeds the limit, the Multi I/O parameters will not

be listed until some of the other parameters are

Electronic System Response The ECM will not

corrected. This will make space on the list in order

allow the engine to start.

to display the Multi I/O parameters. The Check

Engine Lamp will illuminate.

Service Tool Display or Lamps The Check Engine

Lamp will illuminate.

Engine Response The engine will not start.