2023年2月2日 · Still the (code 0228) M16/6 (Throttle valve actuator) : Throttle valve jamming (iced up) (P0638) ,not likely in Hawaii, and the (code 1337) Alternator serial interface persisted. The throttle body actuator test seem fine. I did not have a computer for my hantek lab scope so I replaced the throttle body and voltage regulator.

2019年9月9日 · Repair Information for P0638 Mercedes-Benz code. Learn what Throttle Actuator Control Range/Performance Bank 1 means, location and how to repair?

2013年12月17日 · P0638 - Throttle Actuator Control Range/Performance Bank 1 C0300 - Misfire EDIT: I believe the throttle actuator and misfire codes were being caused by extremely rough starts on account of the borked glow plug. So I went and tested all my glow plugs, voltage test and continuity test, and they all checked out fine.

2024年4月27日 · The powertrain error P0638 in Mercedes-Benz vehicles is a diagnostic trouble code (DTC) that refers to an issue with the Throttle Actuator Control (TAC) Command Performance. The TAC system is instrumental in controlling the throttle position, which in turn regulates the air intake of the engine.

2024年7月7日 · The P0638 fault-error code stands for "Throttle Actuator Control Range/Performance (Bank 1)". This code indicates a problem with the throttle actuator control system on Bank 1 of the engine. The throttle actuator is responsible for regulating the amount of air entering the engine and is typically controlled by an electronic throttle control ...

Dirty or clogged throttle body can triggered the P0638 Mercedes-Benz code. Before replacing any parts try cleaning the throttle body and reset the engine light. The Powertrain Control Module (PCM) compares the actual Throttle Possition (TP) with the target TP when the engine is running.

2017年8月12日 · I think the first four errors dealing with the O2 sensors are likely caused by a wiring problem. They are "voltage implausible" and "heater short circuit to ground". These wires run right by the cats and if they come out of their clips, they can get burned. 1. Make sure everything in the car is turned off and closed. 2.

2017年2月22日 · OBD II fault code P0638 is a generic code that is defined as “Throttle actuator control, Bank 1 -range/performance problem”, and is set when the PCM (Powertrain Control Module) detects a problem with the operation of the throttle control actuator on …

Engine running condition affected: - Throttle valve mechanical failure. - Throttle valve actuator adaptation not performed. - Throttle valve jams/ices up Throttle valve plausibility PWM signal issue.

2024年10月25日 · P0638 specifically refers to a range or performance problem with the throttle actuator control circuit. This could involve irregularities in how the throttle body responds to accelerator input. On the other hand, P0639 points to a malfunctioning throttle actuator itself.