P1745

P1745-TRANSMISSION LINE PRESSURE TOO HIGH FOR TOO LONG

- When Monitored:
Continuously with ignition on.
- Set Condition:
If the transmission has been operating in an open-loop line pressure control for 2000 miles or 1000 2-3 upshifts.

Possible Causes
LINE PRESSURE DTCS PRESENT
Always perform the 42RLE Pre-Diagnostic Troubleshooting procedure before proceeding.

Theory of Operation
This DTC is an informational DTC to inform the technician that transmission has been operating in an open-loop line pressure control for 2000 miles or 1000 2-3 upshifts resulting from a Line Pressure DTC. The 42RLE Transmission is not designed to operate in open-loop line pressure control for an extended period time. This DTC is intended to protect the transmission. If the DTC sets, the transmission controller will place the transmission into limp-in mode.

Diagnostic Test
1. CHECK FOR RELATED DTC's
With the scan tool, check for Transmission Line Pressure DTCs.
View repair
Repair Refer to Testing.