TM 5-3805-298-23-1
0049
Table 1. 91 Throttle Position Sensor Diagnostic Codes - Continued.
049
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
5. At MSD, check for active
91-12 Throttle Position
Diagnostic Code 91-12 Throttle
diagnostic code 91-12 Throttle
Sensor Is Damaged -
Position Sensor Is Damaged
Position Sensor Abnormal
Becomes Inactive - Troubleshooting
Continued
Frequency, Pulse Width, or Period
complete.
Diagnostic Code 91-12 Throttle
Position Sensor Is Damaged
Remains Active - Replace governor
control pedal assembly (WP 0226).
Proceed to Test Step 7.
Test Step 7. Verify Malfunction Is
Resolved.
1. Ensure all wiring harness
connectors are connected.
2. Start engine and operate governor
control pedal (TM 5-3805-298-10).
3. At MSD, check for active
91-12 Throttle Position Sensor Is
diagnostic codes (WP 0008).
Damaged Becomes Inactive -
Troubleshooting complete.
91-12 Throttle Position Sensor Is
Damaged Remains Active - Replace
engine ECM (WP 0265). Proceed to
Test Step 14.
Test Step 8. Test 8 Volt Sensor
Supply Circuit Function in Engine
Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Remove right engine access panel
(WP 0348).
3. Disconnect connector EN-C1
(WP 0012, Figure 11) from engine
ECM J1.
4. Install a jumper wire between
connector C-C8 (WP 0012,
Figure 14) terminal A and terminal
B.
5. Using digital multimeter
Resistance 5.0 Ohms or Less -
(WP 0174), measure resistance
Replace engine ECM (WP 0265).
between connector EN-C1
Proceed to Test Step 14.
(WP 0012, Figure 11) terminal 43
Resistance Greater Than 5.0 Ohms -
and terminal 33.
Proceed to Test Step 9.
0049-17
