Hydraulic Circuit Identification Chart
WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
| Circuit Name | Description |
|---|---|
| ATC/SLY/LUBE | Lubrication circuit for the slip yoke bushing. |
| C1234 | Regulated line pressure from the forward (1, 2, 3, 4) clutch regulator valve supplied to the forward (1, 2, 3, 4) clutch to apply the clutch. |
| C1234FB | C1234 pressure from the forward (1, 2, 3, 4) clutch latch valve supplied to the forward (1, 2, 3, 4) clutch regulator valve to oppose movement of the valve from PC1Z pressure during forward (1, 2, 3, 4) clutch application. |
| C35R | Regulated line pressure from the direct (3, 5, R) clutch regulator valve supplied to the direct (3, 5, R) clutch to apply the clutch. |
| C35RFB | C35R pressure from the direct (3, 5, R) clutch latch valve supplied to the direct (3, 5, R) clutch regulator valve to oppose movement of the direct (3, 5, R) clutch regulator valve from PC2Z pressure during direct (3, 5, R) clutch application. |
| C456 | Regulated line pressure from the overdrive (4, 5, 6) clutch regulator valve supplied to the overdrive (4, 5, 6) clutch to apply the clutch. |
| C456FB | C456 pressure from the overdrive (4, 5, 6) clutch latch valve supplied to the overdrive (4, 5, 6) clutch regulator valve to oppose movement of the valve from PC3Z pressure during overdrive (4, 5, 6) clutch application. |
| CAPY | Regulated line pressure supplied to the torque converter clutch by the Torque Converter Clutch (TCC) apply regulator valve to apply the clutch. |
| CB26 | Regulated line pressure from the intermediate (2, 6) clutch regulator valve to the intermediate (2, 6) clutch to apply the clutch in 2nd and 6th gears. |
| CB26FB | CB26 pressure from the intermediate (2, 6) clutch latch valve supplied to the intermediate (2, 6) clutch regulator valve to oppose movement of the valve from PC3Z pressure during intermediate (2, 6) clutch application. |
| CBLRD | Regulated line pressure from the low/reverse (1, R) clutch regulator valve supplied to the low/reverse (1, R) clutch for dynamic application of the low/reverse (1, R) clutch. |
| CBLRFB | CBLRD pressure from the low/reverse (1, R) clutch latch valve supplied to the low/reverse (1, R) clutch regulator valve to oppose movement of the low/reverse (1, R) clutch regulator valve from PC4R pressure during low/reverse (1, R) clutch application. |
| CBLRS | Line pressure from the low/reverse (1, R) clutch latch valve supplied to the low/reverse (1, R) clutch for static application of the low/reverse (1, R) clutch. |
| CCL | Torque converter supply circuit. |
| CLEX | Low pressure (approximately 17 kPa [2.5 psi]) fluid that fills the unused hydraulic circuits to avoid clutch drain back. |
| COTC | Cooler bypass valve supply circuit from the COUT circuit. |
| COTX | COTC pressure to the TCC charge control valve. |
| COUT | Torque converter outlet circuit to the cooler bypass valve. |
| CRLX | Torque converter feed circuit from the TCC charge limit valve to the torque converter |
| CRLZ | CCL pressure to move the TCC charge limit valve during TCC application |
| D432 | Line pressure from the manual valve supplied in NEUTRAL, DRIVE, M, 2 or 1 to the regulator valves. |
| FCPF | Line pressure from D432 circuit supplied to the forward (1, 2, 3, 4) clutch regulator valve |
| LP | Line pressure supplied by the pump controlled by the Line Pressure Control (LPC) valve and supplied to the manual valve and the low/reverse (1, R) clutch regulator and latch valves. LP also supplies SF and CLEX circuits through orifices. |
| LPC/LPCZ | Solenoid pressure from the LPC solenoid to the main regulator valve to control line pressure. |
| LPX/NPX | Line pressure from the LPC valve that supplies the LP circuit and the CCL circuit. |
| LUBE | Lubrication circuit through the input shaft that supplies lubrication and balance dam fluid. |
| NDX | Line pressure supplied from the manual valve in NEUTRAL and DRIVE position in 2nd, 3rd and 4th gears. |
| PC1/PC1Z | Solenoid pressure from Shift Solenoid A (SSA) to the forward (1, 2, 3, 4) clutch regulator and latch valves to position the valves to apply the forward (1, 2, 3, 4) clutch. |
| PC2/PC2Z | Solenoid pressure from Shift Solenoid B (SSB) to the direct (3, 5, R) clutch regulator and latch valves to position the valves to apply the direct (3, 5, R) clutch. |
| PC2D | Feedback pressure from the direct (3, 5, R) clutch regulator valve to the low/reverse (1, R) clutch latch valve. |
| PC3/PC3Z | Solenoid pressure from Shift Solenoid C (SSC) to the intermediate (2, 6) clutch regulator and latch valves to position the valves to apply the intermediate (2, 6) clutch. |
| PC3H | Feedback pressure from the intermediate (2, 6) clutch regulator valve to the overdrive (4, 5, 6) clutch latch valve. |
| PC4/PC4Z | Solenoid pressure from Shift Solenoid D (SSD) to the direct (3, 5, R) clutch latch valve to supply the PC4R circuit during low/reverse (1, R) clutch engagement in PARK, NEUTRAL and manual 1st gear. |
| PC4R | Solenoid pressure PC4Z circuit directed to the low/reverse (1, R) clutch regulator and latch valves to position the valves to apply the low/reverse (1, R) clutch. |
| PC5/PC5Z | Solenoid pressure from Shift Solenoid E (SSE) to the overdrive (4, 5, 6) clutch regulator and latch valves to position the valves to apply the overdrive (4, 5, 6) clutch. |
| R/D432 | Line pressure supplied to the direct (3, 5, R) regulator valve from the either the R circuit or the D432 circuit. |
| SF/SFPR | Pressure supplied to the shift, TCC and LPC solenoids (Solenoid feed pressure). |
| TCCL | TCC charge control valve feedback pressure from the TCCZ circuit. |
| TCC/TCCZ | Solenoid pressure from the TCC solenoid to the TCC charge control valve and TCC apply regulator valve to apply the TCC charge control valve |