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.

P0C1D OBD2: AUXILIARY Transmission Fluid Pump Control Module Internal

JC Landry July 16, 2025

Learn all about the P0C1D code, what causes issues with the auxiliary transmission fluid pump control module, and how to diagnose and fix common problems.

P0C1E OBD2: AUXILIARY Transmission Fluid Pump Control Module Internal

JC Landry July 16, 2025

Learn all about the P0C1E code, what causes issues with the Auxiliary Transmission Fluid Pump Control Module, and how to diagnose and fix common issues to maintain optimal transmission performance.

P0C1F OBD2: AUXILIARY Transmission Fluid Pump Control Module Internal

JC Landry July 16, 2025

Learn all about the P0C1F code, what causes issues with the auxiliary transmission fluid pump control module, and how to diagnose and fix common problems to maintain optimal vehicle performance.

P0C20 OBD2: AUXILIARY Transmission Fluid Pump Phase U-V-W Circuit/Open

JC Landry July 16, 2025

Learn all about the P0C20 code, what causes auxiliary transmission fluid pump phase U-V-W circuit/open, and how to diagnose and fix common issues to maintain optimal vehicle performance.

P0C21 OBD2: AUXILIARY Transmission Fluid Pump Phase U-V-W Circuit Low

JC Landry July 16, 2025

Learn all about the P0C21 code, what causes AUXILIARY Transmission Fluid Pump Phase U-V-W Circuit Low, and how to diagnose and fix common issues to maintain optimal vehicle performance.

P0C22 OBD2: AUXILIARY Transmission Fluid Pump Phase U-V-W Circuit High

JC Landry July 16, 2025

Learn all about the P0C22 code, what causes issues in the auxiliary transmission fluid pump circuit, and how to diagnose and fix common problems to maintain optimal vehicle performance.

P0C23 OBD2: AUXILIARY Transmission Fluid Pump Control Module Circuit/Open

JC Landry July 16, 2025

Learn all about the P0C23 code, what causes the auxiliary transmission fluid pump control module circuit/open, and how to diagnose and fix common issues to maintain optimal engine performance.

P0C24 OBD2: AUXILIARY Transmission Fluid Pump Control Module Circuit Low

JC Landry July 16, 2025

Learn all about the P0C24 code, what causes issues with the auxiliary transmission fluid pump control module circuit, and how to diagnose and fix common problems.

P0C25 OBD2: AUXILIARY Transmission Fluid Pump Control Module Circuit High

JC Landry July 16, 2025

Learn all about the P0C25 code, what causes high voltage in the auxiliary transmission fluid pump control module circuit, and how to diagnose and fix common issues to maintain optimal vehicle performance.

P0C26 OBD2: AUXILIARY Transmission Fluid Pump Motor Current

JC Landry July 16, 2025

Learn all about the P0C26 code, what causes auxiliary transmission fluid pump motor current issues, and how to diagnose and fix common problems to maintain optimal vehicle performance.