P1405 BUICK Possible Causes
- Faulty EGR Solenoid Valve
- EGR Solenoid Valve harness is open or shorted
- EGR Solenoid Valve circuit poor electrical connection
First diagnose P1405 BUICK code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
Cost of diagnosing the P1405 BUICK code
Labor: 1.0The cost of diagnosing the P1405 BUICK code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
P1405 BUICK Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1405 BUICK MeaningWith the Engine Coolant Temperature (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 Powertrain Control Module (PCM) detected that engine rpm did not drop 4 out of 5 times in the test
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