Why does the VTM 4 light come on?
This is the Variable Torque Management 4 wheel drive system. It is the component of Your vehicle that moves the amounts or levels or torque to the rear wheels of the vehicle when additional traction is needed. The most common cause of this light showing up is due to low oil in the engine, or a loosened or blown gasket.
What do the letters on the Check Engine light mean?
Typically, “P” codes are the only ones that will illuminate the Check Engine Light. The letter “B” indicates a body code, which means that it relates to a body system such as the airbags. The letter “C” indicates a chassis code, used for systems such as the anti-lock brakes.
What is the DTC code on a check engine light?
Diagnostic trouble codes (DTC) are automotive computer codes stored by the on-board computer diagnostic system (OBD) in your vehicle. There are literally hundreds of different codes a Check Engine Light can represent.
How to read Check Engine light ( OBD-II ) codes?
The scan tool will power up as soon as it has been plugged in. Step 3: Read the codes in the computer. Each scan tool will have different instructions on how to operate it, so read yours carefully. Navigate to a heading called “Read Codes” and select it. Step 4: Record the codes that display.
Where to find check engine light codes on Jeep?
These are listed in numerical order for easy searching. When retrieving Jeep check engine light codes with an OBD II scan tool, proceed as follows: 1. Connect scan tool to the 16-pin data link connector (DLC) located near the steering column. The connector may have a removable cover. 2. Turn the ignition on. 3.
Where can I find list of check engine light codes?
If you are unsure of any abbreviations, check out the acronym list by clicking on the link at the left. Next, read our article Automotive Circuit Testing 101, and if there is an article related to the system you are testing, such as Oxygen Sensors or EGR concerns, read these as well.
What does the you mean on a check engine light?
The letter “U” indicates network codes which are used for problems like module failures and losses of communication. Note: Only professional-grade or dealership scan tools are able to diagnose codes outside of powertrain codes. Step 3: Determine if the codes are Society of Automotive Engineers (SAE) codes or manufacturer-specific.
What is the Check Engine Light code for ho2s?
P0052 HO2S Heater Control Circuit High (Bank 2 Sensor 1) P0053 HO2S Heater Resistance (Bank 1, Sensor 1) P0054 HO2S Heater Resistance (Bank 1, Sensor 2) P0055 HO2S Heater Resistance (Bank 1, Sensor 3) P0056 HO2S Heater Control Circuit (Bank 2 Sensor 2) P0057 HO2S Heater Control Circuit Low (Bank 2 Sensor 2)
How to read and understand check engine light ( OBD )?
You will need an OBD scan tool. The scanner allows you to communicate with the computer and retrieve the trouble codes. Certain scanners may give information on what the revealed code means, but most will just give a five digit number and letter combination. Follow these 4 steps to insert and read the OBD scanner: