What is code P202E?
OBD II fault code P202E is a generic code that is defined as “Reductant injector – circuit range/performance bank 1 unit 1”, and is set when the PCM (Powertrain Control Module) detects a voltage in the control circuit (or in the reductant injector itself) that falls outside of the expected or acceptable range.
How do I check my Mercedes code?
Go to Mercedes > Select Model. Go to Auto Scan. Allow the scanner to go through all the systems and determine fault codes stored on each one. This will take a few minutes.
What are the symptoms of a p202e trouble code?
Symptoms of a P202E trouble code may include: Diminished engine performance Excessive black smoke from vehicle exhaust Reduction in fuel efficiency What are some of the common causes of the code?
How much does it cost to diagnose a p202e code?
The cost of diagnosing the P202E code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
What are the diagnostic codes for Mercedes Benz?
Mercedes-Benz Diagnostic Trouble Codes (DTC) for 1996+ models Powertrain P0100 Mass or Volume Air Flow Circuit Malfunction P0101 Mass or Volume Air Flow Circuit Range/Performance Problem P0102 Mass or Volume Air Flow Circuit Low Input P0103 Mass or Volume Air Flow Circuit High Input P0104 Mass or Volume Air Flow Circuit Intermittent
What does the ECM do for a p202e code?
The ECM varies the amount of DEF added by varying the reductant injector duty-cycle in response to changes in engine-out NOx levels. Need more information on how to fix the P202E code?
When to use fault code p202e in OBD II?
We recommend Torque Pro. OBD II fault code P202E is a generic code that is defined as “Reductant injector – circuit range/performance bank 1 unit 1”, and is set when the PCM (Powertrain Control Module) detects a voltage in the control circuit (or in the reductant injector itself) that falls outside of the expected or acceptable range.
What is the severity of the DTC code p202e?
If the PCM detects voltage on the control circuit for the reductant injection valve that is outside the normal range or performance parameters for engine bank 1 unit 1, a code P202E will be stored and a malfunction indicator lamp may be illuminated. What is the severity of this DTC?
What causes the PCM to set code p202e?
Note that while an unexpectedly high or low voltage in the control circuit (s) of the reductant injection system will cause the PCM to set code P202E on the first failure on most applications, the fault needs to occur several times on some other applications before the PCM will illuminate warning light at the same time it sets code P202E.
What does code p202e mean on bank 1?
Note that since code P202E specifically refers to abnormally high or low voltages in the control circuit(s) of the reductant injector on bank 1, the probable causes of code P202E are far more likely to involve failures and malfunctions only in this particular circuit, rather than in any other parts,…