TM 5-3805-298-23-1
0069
Table 1. 2770 Throttle Hold Resume/Decel Switch Diagnostic Codes - Continued.
069
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 1. Check for Active
2770-4 Throttle Lock
Diagnostic Codes.
Resume/Decel Switch
Voltage Below Normal -
1. Connect MSD and select C6.6 924
Continued
2. Start engine or attempt to start
Diagnostic Code 2770-4 Active -
Proceed to Test Step 2.
engine (TM 5-3805-298-10) while
using MSD to check for active
Diagnostic Code 2770-4 Not Active -
diagnostic codes (WP 0008).
Troubleshooting is complete.
Test Step 2. Test for Faulty Throttle
Lock Set/Resume Switch.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Remove console instrument panel
for access to wiring harness
connectors (WP 0264).
3. Disconnect connector E-C42
(WP 0012, Figure 42) from throttle
lock set switch (WP 0012,
Figure 43).
4. Keep throttle lock set switch in the
center position (TM 5-3805-298-
10).
5. Using digital multimeter
Resistance 5.0 Ohms or Less -
Replace throttle lock set switch
(WP 0174), measure resistance
between throttle lock set switch
(WP 0264).
(WP 0012, Figure 43) terminal 1
Proceed to Test Step 5.
and terminal 2.
Resistance Greater Than 5.0 Ohms -
Proceed to Test Step 3.
Test Step 3. Test for Shorted Lower
Cab Wiring Harness.
1. Remove right lower cab access
panels (WP 0347).
2. Disconnect connector EN-C8
(WP 0012, Figure 22) from
connector C-C19 (WP 0012,
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 10
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).
0069-5