The aisin aw4 is a four speed automatic transmission used in some jeeps and as the a340 in various toyotas. The transmission case and internals were identical to the 40l version of the aw4 but the detachable bellhousing and torque converter were unique to the 25l i4 engine.
Tcu Pin8 Wiring Problem Xj Jeep Cherokee Forum
Aw4 transmission wiring diagram. It is electronically controlled in the forward gears and has been used in numerous. C6 parts diagram wiring diagram pdf. See test 4a 1 of 2 for wiring diagram. 22ce77a understanding pro environmental behavior wiring pdf. Test 4a code 700 schematic. Two things control aw4 shifting.
They recieved 456 axle ratios. 1997 the aw4 is exactly the same as the 19905 1996 units except the electrical connector for the wiring harness changed. Many of you know ive been running a manual gear selector switch with my aw4 since the original tcu quit years ago. A simple cut and splice will solve this problem. Check the fluid with the transmission temperature hot the vehicle on. Traced all wiring and everything seemed okay.
A junkyard replacement lasted 2 3 weeks. Jeep aw4 transmission diagram free download wiring diagram pdf. Bought factory trans books and a factory wiring diagram book no help. Verify that the aw4 transmission control unit is properly. Make sure the transmission fluid is at the proper level. 1998 01 the aw4 changed electrically but is otherwise the same as 19905 1997 units.
1 shift lever lever position controls tranny valves mechanically 2 transmission control unit tcu the shift lever makes a very positive move in control the only weak point being there is no separate position for 1 2 as they are combined. The aw4 and the 25l engine was a rare combination in the xj mj model jeeps as spec to build. 1999 montero sport limited 3 5l crawler build 4x4wire pdf. Test 4a code 700 flow chart 2 of 2 92j13598. I ran the original tcu for about 4 6 months before it quit. A bit more info on the aw4 and doing this.
G auto trans diagnosis 4 0l models w aw4 1993 jeep pdf.
Gallery of Aw4 Transmission Wiring Diagram
