Table 2. Engine Troubleshooting with Codes for the 120M Motor Grader - Continued.
CDI FMI CODE
0526-05 Turbo Waste Gate
Drive Current Below Normal
A warning will display on instrument
panel. ECM will log diagnostic code.
Possible Performance Effect:
Engine ECM will log a diagnos-
tic code, and a warning will
appear on instrument panel
once diagnostic code has been
active for 30 seconds.
· The Engine ECM will derate
engine while diagnostic code is
active. After derate has been
activated, the Engine Power
Derate parameter on the MSD
will display 100%.
Test Step 1. Verify Diagnostic
N OT E
Always inspect the harness connectorsthat are involved in the circuit.
Poor connections can often be the cause of a problem in an electrical
circuit. Verify that all connections in the circuit are clean and secure,
and that all connections are in good condition. If a problem with a
connection is found, correct the problem and verify that this diagnostic
code is active before performing this procedure.
Perform open or short circuit test ateach harness connection to identify
correct harness to replace.
Perform this test only if condition is active.
1. Perform Turbo Waste Gate Sole-
Failed with Tested Device Current
noid Test (WP 0038).
Low - Proceed to step 2.
2. Turn the ignition switch OFF.
3. Disconnect the harness connector
from the turbocharger waste gate
4. Install a jumper wire between
harness connector EA-C15 (WP
0009, Figure 29) terminals 2 and