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 3. Using digital multimeter
Voltage 7.6 to 8.4 V - Proceed to step 4.
(WP 0174), test for voltage
Abnormal Frequency, Pulse
Voltage Less Than 7.6 V - Proceed to
between connector C-C8
Width, or Period - Continued
Test Step 10.
(WP 0012, Figure 14) terminal A
and terminal B.
4. Using digital multimeter
Voltage 12 to 14 V - Proceed to Test
(WP 0174), test for voltage
Step 5.
between connector C-C8
Voltage Less Than 12 V - Proceed to
(WP 0012, Figure 14) terminal C
Test Step 12.
and ground.
Test Step 5. Inspect Lower Cab
Wiring Harness, Engine Wiring
Harness, and Engine ECM
Connectors.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Disconnect connector EN-C2
(WP 0012, Figure 12) from
connector C-C18 (WP 0012,
Figure 13).
3. Inspect connector EN-C2
Connector EN-C2 Damaged -
(WP 0012, Figure 12) and
Replace engine wiring harness
connector C-C18 (WP 0012,
(WP 0299).
Figure 13) for damage IAW
Proceed to Test Step 14.
Electrical General Maintenance
Connector C-C18 Damaged -
Procedures (WP 0174).
Replace lower cab wiring harness
(WP 0291).
Proceed to Test Step 14.
No Problem Found - Proceed to
step 4.
4. Remove right engine access panel
(WP 0348).
5. Disconnect connector EN-C1
(WP 0012, Figure 11) from engine
ECM J1.
6. Inspect connector EN-C1
Connector EN-C1 Damaged -
(WP 0012, Figure 11) and engine
Replace engine wiring harness
ECM for damage IAW Electrical
(WP 0299).
General Maintenance Procedures
Proceed to Test Step 14.
(WP 0174).
Engine ECM Damaged - Replace
engine ECM (WP 0265).
Proceed to Test Step 14.
No Problem Found - Proceed to Test
Step 6.
0049-9