Possible Causes
| Possible Causes |
|---|
| RELATED DTCS PRESENT |
| NO. 4 OR NO. 6 CHECK BALL CUT OR DAMAGED |
| (T9) OD PRESSURE SWITCH SENSE CIRCUIT OPEN |
| (T9) OD PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND |
| (T9) OD PRESSURE SWITCH SENSE CIRCUIT SHORT TO OTHER CIRCUITS |
| LOW LINE PRESSURE |
| WIRING AND CONNECTORS |
| CUT OD/REV PISTON SEAL |
| BROKEN OR MISSING OD/REV PISTON BLEED ORIFICE |
| BROKEN REACTION SHAFT SUPPORT SEAL RING |
| POOR MACHINING ON PUMP VALVE BODY FACE |
| BROKEN OR MISSING DRIBBLER ORIFICE ASSEMBLY IN REACTION SHAFT SUPPORT |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| CUT OD ACCUMULATOR PISTON SEAL |
| CRACKED OD ACCUMULATOR PISTON |
| BROKEN OR MISSING OD BLEED ORIFICE IN MAIN VALVE BODY |
| POWERTRAIN CONTROL MODULE |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See 45RFE/545RFE PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .
| GEAR | L/R | 2C | 4C | UD | OD |
| REVERSE | OPEN | OPEN | OPEN | OPEN | OPEN |
| P/N | CLOSED** | OPEN | OPEN | OPEN | OPEN |
| 1ST | CLOSED* | OPEN | OPEN | CLOSED | OPEN |
| 2ND | OPEN | CLOSED | OPEN | CLOSED | OPEN |
| 2ND PRIME | OPEN | OPEN | CLOSED | CLOSED | OPEN |
| 3RD | OPEN | OPEN | OPEN | CLOSED | CLOSED |
| 4TH | OPEN | OPEN | CLOSED | OPEN | CLOSED |
| 5TH | OPEN | CLOSED | OPEN | OPEN | CLOSED |
| *L/R is closed if output speed is below 100 rpm in Drive and Manual 2. L/R is closed in Manual 1. | |||||
| **May be open when rolling in Neutral or at low oil temperatures. | |||||