TM 5-3805-296-23-2
0115
Table 1. Throttle Lock Does Not Engage Correctly Continued.
0115
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 3. Test Scraper Service
Throttle Lock Does Not
Brake Pressure Switch.
Engage Correctly
1. Disconnect connector W-C28
Continued
(WP 0012, Figure 79) from scraper
service brake pressure switch
(WP 0012, Figure 78).
2. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to Test Step 4.
between scraper service brake
Resistance Greater Than 5.0 Ohms
pressure switch terminal 1 and
Replace scraper service brake
terminal 2 (WP 0012, Figure 78).
pressure switch (WP 0363). Connect
connector W-C27 (WP 0012, Figure 77)
to tractor service brake pressure switch
(WP 0012, Figure 76).
Proceed to Test Step 5.
Test Step 4. Test Main Cab Wiring
Harness for High Resistance or
Open.
1. Connect connector W-C27
(WP 0012, Figure 77) to tractor
service brake pressure switch
(WP 0012, Figure 76).
2. Connect connector W-C28
(WP 0012, Figure 79) to scraper
service brake pressure switch
(WP 0012, Figure 78).
3. Disconnect connector W-C12
(WP 0012, Figure 88) from
transmission/chassis ECM.
4. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Replace transmission/chassis ECM
between terminal 20 and terminal
(WP 0495). Proceed to Test Step 5.
46 of connector W-C12
Resistance Greater Than 5.0 Ohms
(WP 0012, Figure 88).
Replace main cab wiring harness
(WP 0505).
Proceed to Test Step 5.
0115-4