TM 5-3805-296-23-1
0036
Table 1. 0549 Throttle Lock Diagnostic Code.
0036
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
0549-02 Throttle Lock
Enable Switch Erratic,
Always inspect harness connectors that are involved in the circuit. Poor
Intermittent, or Incorrect
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 harness connection to identify
the correct 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 Open on Throttle Lock Switch Circuits F717 and
F718.
Engine ECM Detects Short Low on Throttle Lock Switch Circuits F717
and F718.
POSSIBLE CAUSE
Throttle Lock Enable Switch.
Fuse Panel Wiring Harness High Resistance, Open, or Shorted.
Main Cab Wiring Harness High Resistance, Open, or Shorted.
Engine Interface Wiring Harness High Resistance, Open, or Shorted.
Basic Engine Wiring Harness Shorted.
Engine ECM.
Test Step 1. Test Voltage to Throttle
Lock Switch.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Disconnect connector CG-C7
(WP 0012, Figure 307) from
throttle lock switch connector
(WP 0012, Figure 306) (WP 0511).
3. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
4. Using digital multimeter
Voltage 13 0.5 V Proceed to step 5.
(WP 0540), test for voltage
Voltage Less Than 12.5 V Proceed
between connector CG-C7
to Test Step 4.
terminal 1 (WP 0012, Figure 307)
and ground.
