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Needs a new speed sensor or the drive gear wheel has broke ,nothing difficult about this its on top of the passenger side drive shaft differential unit
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DTC C0225 LF Wheel Speed Sensor Circuit Open or Shorted (325 ABS)
As the wheel spins, the wheel speed sensor produces an AC signal. The electronic brake control module (EBCM) uses the frequency of the AC signal to calculate the wheel speed.
Diagnostic Aids
Thoroughly inspect any connection or circuitry that is suspected of causing an intermittent malfunction. Inspect for the following conditions:
• Backed out terminals
• Improper mating
• Broken locks
• Corrosion
• Improperly formed or damaged terminals
• Poor terminal-to-wiring connections
• Physically damaged wiring
• Wiring broken inside the insulation
If the customer's concern is that the ABS indicator lamp is on only during humid conditions such as rain, snow, or vehicle wash thoroughly inspect all wheel speed sensor circuits for signs of water intrusion. Use the following procedure:
Spray the suspected area with a 5% salt water solution (two teaspoons of salt to 12 oz. of water).
Drive the vehicle above 24 km/h (15 mph) for at least 30 seconds.
If the DTC returns, replace the suspected harness.
When inspecting a wheel speed sensor, inspect the sensor terminals and the harness connector for corrosion. If evidence of corrosion exists, then replace the wheel speed sensor. Refer to Wheel Speed Sensor Replacement .
code p 1077 refers to system too lean off idle --bank 1 ====causes --fuel pressure ---injectors--intake leak
also refers to adaptive heated oxygen sensor (HO2S) control bank 1--signal high====causes ---wiring--short to positive ---HO2S---ECM
The HO2S is the sensor in the exhaust manifold before the cat converter and is responsible for setting the mixture
code p 0500 refers to the Vehicle speed sensor (VSS)---circuit malfunction====causes --wiring ---VSS--- ECM
replace the VSS
code p 0500 refers to vehicle speed sensor(VSS)--circuit malfunction===causes --wiring--VSS --- ECM
engine lights report on both engine problems and transmission problems
check all wiring connections to the transmission
the VSS reports to the transmission control module, the road speed and that is when the TCM knows when to change ratios
At this point I would be closely checking the wires and harness connections and then replace the VSS
code p 0500 and 503 both refer to the vehicle speed sensor(VSS)---circuit malfunction or intermittent/ errattic high input====causes wiring-=--VSS---ECM--wiring poor connection--other connected system---instrument panel---VSS---communication control module
to have the abs light on I would be checking the communication control module or the ECM
"FWIW, according to the Mazda factory service manual, the P0421 code indicates "Warm up catalyst system efficiency below threshold".
The DETECTION CONDITION for this code indicates "Number of heated oxygen sensor (rear) inversion becomes closer to that of heated oxygen sensor (front)".
POSSIBLE CAUSES are:
Warm up three way catalytic converter deterioration
Leakage exhaust system
Heated oxygen sensor (front) malfunction
Heated oxygen sensor (rear) malfunction
Mass air flow sensor malfunction
Throttle position sensor malfunction
Vehicle speed sensor malfunction"
I copied the above from a discussion group on the PO421 code. The code can be caused by any of the above listed problems. The vehicle should be further inspected and diagnosed, so you do not have components replaced that do not need to be replaced.
code p 0500 refers to vehicle speed sensor(VSS)--circuit malfunction===causes --wiring VSS---ECM
it has only one VSS and if the wiring is good with good connections replace it
there are other sensors in the transmission so don't confuse them with a VSS
EOBD II Error Code:P0117 Fault Location:
Engine Coolant Temperature (ECT) Sensor (G62) - Low Input Possible Cause:
Malfunction Indicator Lamp (MIL) Triggered on first occurrence.
Coolant thermostat.
Wiring short to earth.
Engine coolant temperature (ECT) sensor.
EOBD II Error Code: P0340 Fault Location:
Camshaft Position (CMP) Sensor A (G40), Bank 1 - Circuit Malfunction Possible Cause:
Malfunction Indicator Lamp (MIL) active.
Wiring from/to Camshaft Position Sensor (CMP) faulty.
Camshaft position (CMP) sensor faulty.
Timing misaligned. Possible Solutions:
Check Wiring from/to Camshaft Position Sensor.
Check Camshaft Position Sensor.
Check Timing.
EOBD II Error Code:P0500 Fault Location:
Vehicle Speed Sensor (VSS) - Circuit Malfunction Possible Cause:
Malfunction Indicator Lamp (MIL) Non Emission Fault - No warning light.
Wiring.
Vehicle speed sensor (VSS).
Engine control module (ECM).
Hello Sir,
The codes that you provided us means the following :----
Code P 0500 :---- The speed sensor is not working or malfunctioning.
Code P 0462 :---- There is a low input in the Fuel Level Sensor Circuit.
Code P 1693 :---- This means that the Turbo Charge Control Circuit is Malfunctioning.
You have to call a mechanic to rectify these faulty areas. Only a certified mechanic can fully recover performance.
Please reply me for further assistance.
Thank you Sir, Have a nice day.
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