TM 5-3805-298-23-1
0070
Table 1. 2771 Throttle Hold Set/Accel Switch Diagnostic Codes - Continued.
070
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
2. Disconnect connector EN-C8
2771-4 Throttle Lock Set/
(WP 0012, Figure 22) from
Accel Switch Voltage Below
connector C-C19 (WP 0012,
Normal - Continued
Figure 23).
3. Using digital multimeter
Continuity - Replace lower cab wiring
(WP 0174), test for continuity
harness (WP 0291).
between connector C-C19
Proceed to Test Step 5.
(WP 0012, Figure 23) terminal 9
No Continuity - Proceed to Test Step 4.
and ground.
Test Step 4. Test for Shorted Engine
Wiring Harness.
1. Remove right engine access panel
(WP 0348).
2. Disconnect connector EN-C1
(WP 0012, Figure 11) from engine
ECM J2.
3. Using digital multimeter
Continuity - Replace engine wiring
(WP 0174), test for continuity
harness (WP 0299).
between connector EN-C1
Proceed to Test Step 5.
(WP 0012, Figure 11) terminal 50
No Continuity - Replace engine ECM
and ground.
(WP 0265).
Proceed to Test Step 5.
Test Step 5. Verify Malfunction Is
Resolved.
1. Ensure all wiring harness
connectors are connected.
2. Ensure right engine access panel
is installed (WP 0348).
3. Ensure right lower cab access
panels are installed (WP 0347).
4. Ensure console instrument panel
is installed (WP 0264).
5. Start engine (TM 5-3805-298-10).
6. At MSD, check for active
Diagnostic Code 2771-4 Throttle
diagnostic codes (WP 0008).
Lock Set/Accel Switch Voltage Below
Normal Becomes Inactive -
Troubleshooting complete.
Diagnostic Code 2771-4 Throttle
Lock Set/Accel Switch Voltage Below
Normal Remains Active - Repeat
troubleshooting from the beginning.
END OF WORK PACKAGE
0070-6