TM-9-2320-366-20-2 MTV Unit Maintenance Manual M1083 Series - Volume 2 Download

CONTINUITY TEST Loose or dirty connectors may cause intermittent loss of power to transmission ECU and diagnostic codes to be logged. Ensure that all connectors are clean and tight before performing troubleshooting. Failure to comply may result in incorrect test results. Use care when testing electrical connectors. Do not damage connector pins or sockets with multimeter probes. Failure to comply may result in damage to equipment. CAUTION NOTE Inspect connector pins/sockets for damage, corrosion, and serviceability. Check that connector pins are not pushed back and are capable of making good contact. (1) Remove two screws and washers from front grille. (2) Remove screw and washer from front grille. (3) Remove front grille from cab. (4) Disconnect connector P119 from connector J119. (5) Remove kick panel (para 16-3). (6) Disconnect connector clamp from connector P114. (7) Disconnect connector P114 from WTEC III transmission ECU. (8) Install jumper wire on connector J119 for appropriate sub code. Refer to Table 2-35. WTEC III Cab Transmission Harness Transmission Solenoid Test Points. (9) Set multimeter to ohms. (10) Connect positive (+) probe of multimeter to connector P114. Refer to Table 2-35. WTEC III Cab Transmission Harness Transmission Solenoid Test Points. (11) Connect negative (-) probe of multimeter to connector P114 and note reading on multimeter. Refer to Table 2-35. WTEC III Cab Transmission Harness Transmission Solenoid Test Points. (12) Connect negative (-) probe of multimeter to all other sockets in connector P114, one at a time, and note reading on multimeter. (13) Connect negative (-) probe of multimeter to ground and note reading on multimeter. (14) If continuity is not present, in step 11, or continuity is present in step 12 or 13, replace WTEC III cab transmission harness (para 7-138). (15) Remove jumper wire from connector J119. (16) Connect connector P119 to connector J119. Sub Code Jumper Across Connector P114 Negative (-) Probe 12 13 14 15 16 21 22 23 24 J119M to J119B J119Tto J119N J119C to J119V J119W to J119B J119U to J119N J119F to J119H J119D to J119V J119P to J119S J119J to J119B J119K to J119A P114-1 P114-2 P114-5 P114-1 P114-2 P114-3 P114-7 P114-19 P114-1 P114-19 P114-4 P114-20 P114-17 P114-21 P114-6 P114-22 P114-17 P114-23 P114-8 P114-24 Positive (+) Probe 26 27 J119M to J119B P114-1 P114-4 Change 2 2-1749 Table 2-35. WTEC III Cab Transmission Harness Transmission Solenoid Test Points TM 9-2320-366-20-2