P1405 OBD Trouble Code

1 result found

P1405 - GM
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Exhaust Gas Recirculation Error (EGR Solenoid 3) Conditions

Cause

ECT over 183°F, gear selector in 1st or 2nd gear, vehicle in coast-down mode, HO2S-11 signal over 566 mv, VSS over 20 mph, A/C Clutch on, engine speed at 1000-1488 rpm, then the PCM detected that engine rpm did not drop 4 out of 5 times in the test

Try also: https://www.obd-codes.com/p1405