Dodge Sprinter 2006 Manual page 1766

21 - 28 AUTOMA TIC TRANSMISSION NAG1 - SERVICE INFORMA TION
Shift Phase - 1-2 Shift Phase 2
1 - 1-2/4-5 SHIFT SOLENOID
2 - 1-2/4-5 OVERLAP VALVE
3 - 1-2/4-5 SHIFT PRESSURE SHIFT VALVE
4 - 1-2/4-5 HOLDING PRESSURE SHIFT VALVE
Th e B1 (7) (F ig. 18) pr essu r e a ct in g on t h e en d fa ce
of t h e sh ift pr essu r e sh ift va lve (3) is r epla ced by t h e
wor kin g pr essu r e (p-A). Th e sh ift pr essu r e is a lso
Fig. 18 Shift Phase - 1-2 Shift Phase 2
5 - 1-2/4-5 COMMAND VALVE
6 - DRIVING CLUTCH K1
7 - HOLDING CLUTCH B1
8 - SHIFT PRESSURE REGULATOR VALVE
r ou t ed t o t h e spr in g en d of t h e h oldin g va lve (4) a n d
t h e h oldin g va lve down sh ift s. Th e lin e pr essu r e is
t h en r ou t ed t o t h e com m a n d va lve (5).
VA