FILTER A 0366774 - Caterpillar

Image1.1.1
Image1.1.2
Rework Transmission Override Harness inside Cab:
1. Remove the back panel behind driver seat inside the cab that covers all the ECMs. Remove panel from cab to allow access to override ECM.
2. Remove the 70 pin connector from override ECM. This makes pin removal and insertion easier. Refer to Image1.2.1 for the location of the Steel Mill Override ECM.
Image1.2.1
Insert Small Harness Jumpers into 70 Pin Connector of Transmission Override Harness: (Refer to Image 1.3.1 and Image 1.3.2 for details)
1. Remove the white wire (X901-CP64) from position 26 of the 70 pin connector for the override ECM. Place (X901-CP64) wire into position 1 of one of the short jumper harnesses built in the previous section. Place the wire in position 2 of the same connector into position 26 of the 70 pin connector. Put green wedge in plug and plug into 189-3158 Arc Suppressor.
2. Remove the purple wire (X801-CP63) from position 27 of the 70 pin connector for the override ECM. Place (X801-CP63) wire into position 2 of one of the long jump harnesses built in the previous section. Place the wire in position 1 of the same connector into position 27 of the 70 pin connector. Put green wedge in plug and plug into 189-3158 Arc Suppressor.
3. Remove the blue wire (X754-CP65) from position 32 of the 70 pin connector for the override ECM. Place (X754-CP65) wire into position 1 of one of the short jumper harnesses built in the previous section. Place the wire in position 2 of the same connector into position 32 of the 70 pin connector. Put green wedge in plug and plug into 189-3158 Arc Suppressor.
4. Remove the purple wire (Y801-CP66) from position 33 of the 70 pin connector for the override ECM. Place (Y801-CP66) wire into position 2 of one of the long jumper harnesses built in the previous section. Place the wire in position 1 of the same connector into position 33 of the 70 pin connector. Put green wedge in plug and plug into 189-3158 Arc Suppressor.
5. Remove the green wire (X836-CP67) from position 34 of the 70 pin connector for the override ECM. Place (X836-CP67) wire into position 1 of one of the short jumper harnesses built in the previous section. Place the wire in position 2 of the same connector into position 34 of the 70 pin connector. Put green wedge in plug and plug into 189-3158 Arc Suppressor.
6. Remove the blue wire (K869-CP68) from position 35 of the 70 pin connector for the override ECM. Place (K869-CP68) wire into position 2 of one of the long jumper harnesses built in the previous section. Place the wire in position 1 of the same connector into position 35 of the 70 pin connector. Put green wedge in plug and plug into 189-3158 Arc Suppressor.
7. Install 70 pin connector back on override ECM.
8. Place panel behind driver seat back inside the cab, but do NOT put screws back in place yet.
Image1.3.1
Image1.3.2
Test Override System: Ensure that there is clear space around work