COVER-SUSPENSION 1159310 - Caterpillar

"Diagnostic" Lamp
Use the "DIAGNOSTIC" lamp or a Caterpillar electronic service tool to determine the diagnostic flash code. Not all diagnostic codes have a unique flash code.Note: Flash codes should only be used to indicate the nature of a diagnostic condition. Do not use flash codes to perform detailed troubleshooting.Use the following procedure to retrieve the diagnostic codes if the application is equipped with an engine DIAGNOSTIC lamp:
The "DIAGNOSTIC" lamp will flash in order to indicate a two-digit code. The sequence of flashes represents the system diagnostic message. Each digit of the two-digit code is determined by counting the number of flashes. The lamp flashes at a rate of two times per second. The lamp will pause for one second between digits. The lamp will pause for two seconds between codes.
Turn the start/run key to the ON position. The engine does not need to be started in order to view codes. The engine does not need to be running while the start/run switch is in the ON position. The "DIAGNOSTIC" lamp blinks on and off at five second intervals.
When the start/run key is in the ON position, the lamp is checked for proper operation. If there are any active codes except for Code 34, the codes are displayed at this time.Note: The "DIAGNOSTIC" lamp will illuminate for five seconds. The lamp will stay on if there is an active diagnostic code.
Active diagnostic codes will always be flashed. There is no toggle switch that will shut off the lamp. Table 1 indicates the potential effect on the engine performance with active flash codes. Table 1 also forms a list of Electronic diagnostic codes and descriptions.Possible Performance Effect of Active Diagnostic Codes
Table 1
Possible Performance Effect of Active Diagnostic Codes
Flash Code CID-FMI Code SPN-FMI Code Description of Code Engine Misfires Low Power Reduced Engine Speed Engine Shutdown
00 545-05 545-05 Ether Start Relay open/short to +batt
545-06 545-06 Ether Start Relay short to ground
12 266-02 266-02 Incorrect Crank-without-inject inputs
13 174-03 174-03 Fuel Temperature open/short to +batt
174-04 174-04 Fuel Temperature short to ground
21 262-03 620-03 5 Volt Sensor DC Power Supply short to +batt
262-04 620-04 5 Volt Sensor DC Power Supply short to ground
263-03 678-03 Digital Sensor Supply short to +batt
263-04 678-04 Digital Sensor Supply short to ground
24 100-03 100-03 Engine Oil Pressure open/short to +batt
100-04 100-04 Engine Oil Pressure short to ground
25 273-00 102-00 Turbo Outlet Pressure above normal
273-03 102-03 Turbo Outlet Pressure open/short to +batt
273-04 102-04 Turbo Outlet Pressure short to ground
26 274-03 108-03 Atmospheric Pressure open/short to +batt
274-04 108-04 Atmospheric Pressure short to ground
27 110-03 110-03 Engine Coolant Temperature open/short to +batt X X X
110-04 110-04 Engine Coolant Temperature short to ground X X