DTC P0731 Cadillac
Incorrect 1st Gear Ratio (4L80-E)
Incorrect 1st Gear Ratio (4L80-E)
Description
DTC P0121-P0123, P0502, P0503, P0716, P0717, P1820, P1822, P1823 and P1825 not set, engine started, vehicle speed over 3 mph, Fuel Cutoff inactive, Transmission not in P N, time since last gear select lever change over 6 seconds, TP angle over 10%, TFT se
Cause and Solution
ATF level is too low, or the fluid is burnt or contaminated
ISS or OSS signal circuit has an intermittent fault condition
Inspect for debris in transmission pan or a sticking shift valve
Video Guide
Diagnostic Info
- DTC Code: P0731
- Brand: Cadillac