Table 2. Engine Troubleshooting with Codes for the 120M Motor Grader - Continued.
CDI FMI CODE
N OT E
2417-06 Ether Injection Con-
trol Solenoid Current Above
The Engine ECM uses data from the engine coolant temperature
Normal Code - Continued
sensor and intake manifold temperature sensor to determine the need
for the ether injection starting aid. The Engine ECM controls the ether
valve solenoid to provide better cold start attempts.
The ether valve solenoid control circuit R941-GY starts at Engine ECM
harness connector FA-C17 terminal 29 and is routed to ether valve
solenoid harness connector FE-C2 terminal 1. The solenoid ground
circuit starts at ether injection solenoid harness connector FE-C2
terminal 2 and is routed to the engine ECM harness connector FA-C17
Test Step 1. Verify Diagnostic Code
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 Ether Injection Solenoid
Diagnostic Code 2417-06 Active -
Override Test (WP 0035) and
Proceed to Test Step 2.
check if diagnostic code 2417-06
Test Step 2. Test Solenoid Control
1. Turn the ignition switch to the
2. Disconnect harness connector
ether valve solenoid.
3. Turn ignition switch to the ON
4. Perform Ether Injection Solenoid
2417-06 Remains Active - Proceed
Test (WP 0035) and check if diag-
to step 5.
nostic code 2417-05 becomes
2417-05 Becomes Inactive - ECM
and circuits tests OK, ether injection
solenoid faulty. Replace ether starting
valve (WP 0122).