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
91-8 Throttle Position Sensor Test Step 6. Verify if Code Is Still
Abnormal Frequency, Pulse Active.
Width, or Period - Continued 1. Connect connector C-C8
(WP 0012, Figure 14) to throttle
position sensor.
2. Connect connector EN-C2
(WP 0012, Figure 12) to connector
C-C18 (WP 0012, Figure 13).
3. Connect connector EN-C1
(WP 0012, Figure 11) to engine
ECM J1.
4. Start engine and operate governor
control pedal (TM 5-3805-298-10).
5. At MSD, check for active
Diagnostic Code 91-8 Throttle
diagnostic code 91-8 Throttle
Position Sensor Abnormal
Position Sensor Abnormal
Frequency, Pulse Width, or Period
Frequency, Pulse Width, or Period
Becomes Inactive - Troubleshooting
complete.
Diagnostic Code 91-8 Throttle
Position Sensor Abnormal
Frequency, Pulse Width, or Period
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
Diagnostic Code 91-8 Throttle
diagnostic codes (WP 0008).
Position Sensor Abnormal
Frequency, Pulse Width, or Period
Becomes Inactive - Troubleshooting
complete.
Diagnostic Code 91-8 Throttle
Position Sensor Abnormal
Frequency, Pulse Width, or Period
Remains Active - Replace engine
ECM (WP 0265).
Proceed to Test Step 14.
Test Step 8. Test Wiring Harness for
High Resistance or Open.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
0049-10
