P00B5 OBD Error Code: Problem & Solutions
OBD Code P00B5 - Radiator Coolant Temperature Sensor Circuit Intermittent/Erratic
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When a P00B5 trouble code sets it means that the
powertrain control module has detected a fault, specifically to the Coolant
Temperature Sensor (CTS) and the turbochargers.
If you notice a lean or risk condition in
the engine, decreased fuel efficiency, black smoke from the exhaust, and/or
illuminated Check Engine Light on the dashboard, them there is a major
possibility that you are dealing with the OBD Code P00B5 with your vehicle.
Learn More About OBD Code P00B5 Error
The Engine Control Module (ECM) uses the CTS' values
to monitor the engine's temperature and in turn, can regulate it accurately.
Different temperatures require different air/fuel mixtures so it is imperative
that the CTS is functioning within desired ranges. Most times, CTS' are
Negative Temperature Coefficient sensors, which means, the resistance within
the sensor itself decreases as the temperature rises. Understanding this will
help you greatly when troubleshooting.
P00B5 Radiator Coolant Temperature Sensor Circuit
Intermittent code is set when the ECM monitors an intermittent (comes and goes)
malfunction within the CTS or its circuit.
What causes the problem with the
Radiator Coolant Temperature Sensor Circuit?
- Faulty/Damaged Coolant Temperature Sensor
- Dirty or blocked Coolant Temperature
Sensor
- Faulty radiator
- Seal around Coolant Temperature Sensor
broken/damaged
- Damaged wiring/connections in the CTS
circuit
- Faulty PCM (Powertrain Control Module)
- Bad fuse in the CTS (Coolant Temperature
Sensor) circuit
Replace/Repair These Parts To Fix OBD Code P00B5
- Turbocharger
- If the turbocharger is
performing consistently, then replace your old
turbochargers with us!
- Supercharger
- Supercharger is important as it
increases the air pressure or density of air
supplied to an internal combustion engine. Replace damaged supercharger and
parts today for increased performance.
- Turbo Boost Sensor - Boost pressure sensors can be
responsible for wrong readings thus posing the error. Thus, replace old sensor
today!
- Boost Pressure Gauge - It is important to check the physical
readings of the gauge in relation to the sensor picking the readings. Replace
the gauge, if found faulty.
- Intake Manifolds - Old/damaged air intake manifolds can affect the air
intake and impact the engine’s performance. Replace
damaged intake manifolds from us!
- Engine Control Module - OBD Error
Code P00B5 can also be due to faulty ECMs. This may lead to engine stalling or
not starting, and check engine lights being on. It’s better to get the faulty
electricals replaced as soon as possible.
- Powertrain Control Module - P00B5 error
code also relates to problems with the powertrain. Find all the Powertrain
related parts with us.
- Auto Switches
& Sensors - Common causes behind
that P00B5 error code can be defective switches or faulty sensors. So it will
be a good decision to replace them now.
- Diagnostic Tool - In order to detect the error, one needs high grade
diagnostic tools. Visit us today to grab amazing deals.
Symptoms Of OBD Error Code P00B5
This code would be considered a moderately severe
issue and will vary according to symptoms and how the fault is affecting your
vehicle’s performance. Neglect this problem long enough, and you could face
some hefty engine repair bills.
Common Symptoms
- Erratic idle and hard cold start
- Engine stalling and not starting
- Decreased fuel economy
- Exhaust emitting smoke
- Fuel leakage smell
- Wrong temperature readings
- Decreased
engine performance and acceleration
How To Correct P00B5 Radiator Coolant Temperature Sensor Circuit Intermittent/Erratic
Key components that can
be replaced if found problematic to solve the OBD Code P00B5 error are as follows:
- CTS (Coolant Temperature
Sensor)
- Radiator
- Seal for the CTS
(Coolant Temperature Sensor)
- Wiring/connections in
the CTS (Coolant Temperature Sensor) circuit
- ECM/ PCM (Powertrain
Control Module)
- Fuses in the CTS (Coolant Temperature Sensor) circuit
Easy Diagnosis Of Engine Error OBD Code P00B5
Take the
help of a qualified mechanic to diagnose the OBD error code problem. Some of the tools and equipment required for easy diagnosis of error P00B5 are mentioned
below;
- OBD
code reader
- Antifreeze/Coolant
- Drain
pan
- Multimeter
- Basic
socket set
- Basic
ratchet and wrench sets
- Basic
screwdriver set
- Battery
terminal cleaner
- Service manual
Common
Mistakes When Diagnosing OBD Code P00B5
Replacing the CTS without performing and diagnostics at all
is one of the manor issues. This happens as a lot of times, the sensor itself has
failed, as it undergoes a lot of stress and is a high failure item so it can be
easy to get lazy and just replace the sensor.
Measuring the wrong terminals in the
connectors is also a major mistake.
Always checks for wiring and harness issues related to
the sensors and connectors.