JC Landry, Author at eManualOnline Blog

JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

P0811 OBD2: Excessive Clutch “A” Slippage

JC Landry August 19, 2025

Learn all about the P0811 code, what causes excessive clutch 'A' slippage, and how to diagnose and fix common issues to maintain optimal engine performance.

P0812 OBD2: Reverse Input Circuit

JC Landry August 19, 2025

Learn all about the P0812 code, what causes reverse input circuit issues, and how to diagnose and fix common problems to maintain optimal vehicle performance.

P0813 OBD2: Reverse Output Circuit

JC Landry August 19, 2025

Learn all about the P0813 code, what causes issues with the reverse output circuit, and how to diagnose and fix common problems to maintain vehicle safety.

P0814 OBD2: Transmission Range Display Circuit

JC Landry August 19, 2025

Learn all about the P0814 code, what causes transmission range display circuit issues, and how to diagnose and fix common problems to maintain optimal vehicle performance.

P0815 OBD2: Upshift Switch Circuit

JC Landry August 19, 2025

Learn all about the P0815 code, what causes upshift switch circuit issues, and how to diagnose and fix common problems to maintain optimal vehicle performance.

P0816 OBD2: Downshift Switch Circuit

JC Landry August 19, 2025

Learn all about the P0816 code, what causes downshift switch circuit issues, and how to diagnose and fix common problems to maintain optimal vehicle performance.

P0817 OBD2: Starter Disable Circuit/Open

JC Landry August 19, 2025

Learn all about the P0817 code, what causes starter disable circuit/open issues, and how to diagnose and fix common problems to maintain optimal engine performance.

P0818 OBD2: Driveline Disconnect Switch Input Circuit

JC Landry August 19, 2025

Learn all about the P0818 code, what causes driveline disconnect switch input circuit issues, and how to diagnose and fix common problems to maintain optimal vehicle performance.

P0819 OBD2: Up and Down Shift Switch to Transmission Range Correlation

JC Landry August 19, 2025

Learn all about the P0819 code, what causes the up and down shift switch to transmission range correlation issue, and how to diagnose and fix common problems to maintain optimal vehicle performance.

P081A OBD2: Starter Disable Circuit Low

JC Landry August 19, 2025

Learn all about the P081A code, what causes starter disable circuit low, and how to diagnose and fix common issues to maintain optimal engine performance.