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
3. Ensure right lower cab access
2770-3 Throttle Lock
panels are installed (WP 0347).
Resume/Decel Switch
Voltage Above Normal -
4. Ensure console instrument panel
Continued
is installed (WP 0264).
5. Start engine (TM 5-3805-298-10).
6. At MSD, check for active
Diagnostic Code 2770-3 Throttle
diagnostic codes (WP 0008).
Lock Resume/Decel Switch Voltage
Above Normal Becomes Inactive -
Troubleshooting complete.
Diagnostic Code 2770-3 Throttle
Lock Resume/Decel Switch Voltage
Above Normal Remains Active -
Repeat troubleshooting from the
beginning.
NOTE
2770-4 Throttle Lock
Resume/Decel Switch
Always inspect wiring harness connectors that are involved in the circuit.
Voltage Below Normal
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 the
connection is found, correct the problem and verify that this malfunction
or diagnostic code is active before performing this procedure.
Perform open or short-circuit test at each wiring harness connection to
identify the correct wiring harness to replace.
Tag all wiring harnesses to aid in installation.
Perform this test only if condition is active.
DIAGNOSTIC CODE SET CONDITION
Engine ECM detects a short to ground in the throttle hold resume/decel circuit.
POSSIBLE CAUSE
Throttle lock enable switch is faulty.
Engine wiring harness is shorted.
Lower cab wiring harness is shorted.
Engine ECM.
