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.

P253B OBD2: PTO Sense Circuit Range/Performance

JC Landry May 30, 2025

Learn all about the P253B code, what causes PTO sense circuit range/performance issues, and how to diagnose and fix common problems to maintain optimal vehicle performance.

P253C OBD2: PTO Sense Circuit Low

JC Landry May 30, 2025

Learn all about the P253C code, what causes PTO sense circuit low, and how to diagnose and fix common issues to maintain optimal engine performance.

P253D OBD2: PTO Sense Circuit High

JC Landry May 30, 2025

Learn all about the P253D code, what causes PTO Sense Circuit High, and how to diagnose and fix common issues to maintain optimal engine performance.

P253E OBD2: PTO Sense Circuit Intermittent/Erratic

JC Landry May 30, 2025

Learn all about the P253E code, what causes PTO sense circuit intermittent/erratic, and how to diagnose and fix common issues to maintain optimal engine performance.

P253F OBD2: Engine Oil Deteriorated

JC Landry May 30, 2025

Learn all about the P253F code, what causes engine oil deterioration, and how to diagnose and fix common issues to maintain optimal engine performance.

P2540 OBD2: Low Pressure Fuel System Sensor Circuit Range/Performance

JC Landry May 30, 2025

Learn all about the P2540 code, what causes low pressure fuel system sensor circuit range/performance issues, and how to diagnose and fix common problems to maintain optimal engine performance.

P2541 OBD2: Low Pressure Fuel System Sensor Circuit Low

JC Landry May 30, 2025

Learn all about the P2541 code, what causes low pressure fuel system sensor circuit low, and how to diagnose and fix common issues to maintain optimal engine performance.

P2542 OBD2: Low Pressure Fuel System Sensor Circuit High

JC Landry May 30, 2025

Learn all about the P2542 code, what causes low pressure fuel system sensor circuit high, and how to diagnose and fix common issues to maintain optimal engine performance.

P2543 OBD2: Low Pressure Fuel System Sensor Circuit Intermittent

JC Landry May 30, 2025

Learn all about the P2543 code, what causes low pressure fuel system sensor circuit intermittent, and how to diagnose and fix common issues to maintain optimal engine performance.

P2544 OBD2: Torque Management Request Input Signal “A”

JC Landry May 30, 2025

Learn all about the P2544 code, what causes torque management request input signal "A," and how to diagnose and fix common issues to maintain optimal engine performance.