Line Pressure Diagnosis Chart
LINE PRESSURE DIAGNOSIS CHART
| Test Results | Possible Source |
|---|---|
| Low pressure in all ranges | Worn pump. |
| Low pressure in all ranges | Fluid leaking from pump, main control valve body or transaxle case. |
| Low pressure in all ranges | Pressure control solenoid inoperative. |
| Low pressure in all ranges | Solenoid regulating valve sticking. |
| Low pressure in D, 2, 1 only | Fluid leaking from forward clutch hydraulic circuit. |
| Low pressure in 2 | Fluid leaking from intermediate/overdrive band hydraulic circuit. |
| Low pressure in 1, R only | Fluid leaking from low/reverse clutch hydraulic circuit. |
| Low in R only | Fluid leaking from reverse clutch hydraulic circuit. |
| High pressure in all ranges | Pressure control solenoid inoperative or open wire harness. |
| High pressure in all ranges | Pressure regulator valve sticking. |
| High pressure in all ranges | Powertrain control module (PCM) inoperative. |