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Table 2. Engine Troubleshooting Procedures. - Continued
Table 2. Engine Troubleshooting Procedures. - Continued

Field Maintenance Manual 1 D7R Dozer Type I With Winch and Type II With Ripper
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TM 5-2410-241-23-1
0019
Table 2. Engine Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
342-11 Secondary Engine
8. Using digital multimeter
1. If continuity is found, replace ECM
Speed Sensor Mechani-
(WP 0296), test for continuity
harness (WP 0105). Ensure all
cal Failure - Continued
between pin 59 on engine ECM
harness connectors are recon-
connector N-C1 (WP 0018,
nected. Verify correct operation of
Figure 2) and all other pins on
machine (TM 5-2410-241-10).
engine ECM connector N-C1
2. If continuity is not found, proceed
(WP 0018, Figure 2).
to step 9.
9. Using digital multimeter
1. If continuity is found, replace ECM
(WP 0296), test for continuity
harness (WP 0105). Ensure all
between pin 58 on engine ECM
harness connectors are recon-
connector N-C1 (WP 0018,
nected. Verify correct operation of
Figure 2) and all other pins on
machine (TM 5-2410-241-10).
engine ECM connector N-C1
2. If continuity is not found, replace
(WP 0018, Figure 2).
engine ECM (WP 0101). Ensure
all harness connectors are recon-
nected. Verify correct operation of
machine (TM 5-2410-241-10).
545-5 Ether Start Relay
1. Connect MSD (WP 0016). Select
1. If active 545-5 code is present,
Open/Short to +Batt
3176C D7 engine ECM and check
proceed to step 2.
for Diagnostic Codes or Event
2. If no active codes are present,
Codes (WP 0013).
problem does not exist at this
time. Resume normal operation.
2. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
3. Disconnect engine harness ether
relay connector V-C18 (WP 0018,
Figure 43) from ether relay.
4. Install jumper wire in pins 2 and 5
on engine harness ether relay
connector V-C18 (WP 0018,
Figure 43).
5. Turn battery disconnect switch
and ignition switch to ON position
(TM 5-2410-241-10).
6. Check for Diagnostic Codes or
1. If active 545-5 code is present,
Event Codes (WP 0013).
proceed to step 7.
2. If active code 545-6 is present,
replace ether aid relay (WP
0060). Ensure all harness con-
nectors are reconnected. Verify
correct operation of machine
(TM 5-2410-241-10).
0019-88


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