VALVE MECHANISM GP 4921194 - Caterpillar

Table 1
Diagnostic Trouble Codes
J1939 Code and Description Comments
190-0
Engine Speed : High - most severe (3) The code requires factory passwords to be cleared.
190-15
Engine Speed : High - least severe (1) The code is logged. Probable Causes
Proper operation of the turbocharger
Intake air
Starting aids that are not operating properlyRecommended Actions
Note: The procedures have been listed in order of probability. Complete the procedures in order.
Table 2
Troubleshooting Test Steps Values Results
1. Proper Operation of the Turbocharger
A. Check for proper operation of the turbocharger.
B. Check for any oil that may be leaking into the air inlet.
Turbocharger
Result: The turbocharger is not leaking oil into the inlet.
Proceed to Test Step 3.
Result: The turbocharger is leaking oil into the inlet.
Repair: Repair or replace the turbocharger.
If the problem is not resolved, proceed to Test Step 2.
2. Intake Air
A. Check for combustible gases in the surrounding atmosphere.
B. Check for proper operation of starting aids (if equipped).
Air Quality
Result: The atmosphere has combustible gases.
Repair: Do not operate the engine in an environment with combustible gases.
Verify that the repair eliminated to problem.
If the procedure did not correct the issue, contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).