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Rear wheel speed signal erratic C0237. rear wheel speed signal circuit open C0235. where is the sensor located.

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Posted on Jan 02, 2017

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SOURCE: location of speed sensor on 2004 silverado automatic transmission

the speed sensor is located generally on the tailshaft housing or in other words where the driveshaft slides into transmission has a small black sensor with a couple of wires going to it. those trucks have a bad problem with the cluster going out on them though. more than likely that is going to be your problem. you have to take cluster to dealership (new one) and they have to burn the current mileage into it.

Posted on Dec 22, 2008

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SOURCE: input/turbine speed sensor circuit

Your speed sensor, is located on top of the transaxle, near the starter. To access it, remove the battery, then remove the battery tray (4 10mm bolts). You will see wires coming from the lower oxygen sensor, and they snap into the bracket that holds the speed sensor in place. The actual speed sensor has a 2 wire clip on it, and is held in place by the bracket and a 10mm bolt.

Posted on Apr 20, 2009

praky16
  • 744 Answers

SOURCE: Cannot strat the engine. New battery, BOSCH diagnostics : Engine calculator to check. Default : 0201 Speed sensor no signal / sensor of ref. for circuit?. I need an electrical chart for the computer.

hi..
Disassemble and clean the carb, particularly the jets. I suspect the charge light being on is a result of your destroyed battery, which needs to be replaced. Sta-bil over the winter and a smart trickle charger will prevent the problems you are having in the future...
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Posted on Jun 01, 2009

polarcycle
  • 1392 Answers

SOURCE: I pulled the codes and here they are : C0036, C0035, C0040

Sounds like you need front wheel speed sensors. Replace the wheel bearings and sensors. May have an ABS unit fault, but more likely is both wheel bearings/speed sensors.

Posted on Jun 10, 2009

  • 299 Answers

SOURCE: HOW TO REPLACE OR REPAIR WHEEL SPEED SENSOR

It is part of the bearing hub assembly.Very have to do without air tools,If setting multiple abs/tc code (wheel speed sensors) probably abs electronic module or chaffed wires on drivers side at ac lines by air box.Have big problems with this and probably will come back.

Posted on Jun 17, 2009

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On grand prix2006 code C0040 which weel is that my computer tell me rear but no side


It is the right front (RF) ABS sensor that this codes corresponds to nothing to do with the rear.. Are you using a GM TECH 2 scanner? If not that is the problem.

Nov 22, 2016 | Cars & Trucks

1 Answer

What will make my truck shut off while driving. The truck runs well, will shut off without indication. I can start it back in neutral or park, sometimes it will turn over once or twice then start.


its a brake failure system problem

those codes say
hey this truck doesn't have a working abs brake system
STOP this truck

abs module could be a leaky or failed pressure valve
wheel sensors ..dirty or insulation cracked

no rear speed signal is generated as abs system fails

P0440-Evap Emissions. code of is a different issue

Oct 13, 2016 | Cars & Trucks

1 Answer

What are the probable causes of DTCs C0222, C0226, and C0237?


Brent, Check and clean connections(use electronic contact cleaner), make sure wires are not damaged. Check grounds from EBCM controller. Check links below and don't be afraid to google search for more info.
C 0222 Missing Right Front Speed Signal
C 0226 Missing Left Front Speed Signal
- Faulty Right/Left Front Speed Sensor
- Right/ Left Front Speed Sensor harness is open or shorted
- Right/ Left Front Speed Sensor circuit poor electrical connection
- Faulty EBCM

C 0237 Erratic rear speed signal
- Faulty Rear Speed Sensor
- Rear Speed Sensor harness is open or shorted
- Rear Speed Sensor circuit poor electrical connection
- Faulty EBCM


How fixed Chevy with an Abs and Brake light on

https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&uact=8&ved=0ahUKEwi0i8zz5YzLAhWD74MKHffwDLQQtwIIITAC&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DR_5WZUebDx8&usg=AFQjCNHimqe_Fje8AySjD5N0Wh8z8dQuuw

How To Install Replace Front ABS Sensor and Harness 2000 06 Chevy Suburban...

Feb 23, 2016 | 2003 Chevrolet Tahoe

1 Answer

05 trailblazer 4.2 Multiple codes Po106, po305, po463, po128, po856 Co298,c0237,c0265,c0245,246, c0241,c0242, c0251,52,c0247,co243 WTF could all this mean


Hi Candice, .How does it run ? P0305 is a misfire code for cylinder #5, P0106 The manifold absolute pressure (MAP) sensor responds to pressure changes in the intake manifold. The pressure changes occur based on the engine load. The MAP sensor has the following circuits:
5-volt reference circuit
• Low reference circuit
• MAP sensor signal circuit
DTC P0128 Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature
C0237
The EBCM detects an erratic rear wheel speed signal for 105 milliseconds.
DTC C0265 EBCM Motor Relay Circuit
C0265
Thoroughly inspect connections and circuitry that may cause an intermittent malfunction.
• DTC C0241 EBCM Control Valve Circuit
• DTC C0242 EBCM Control Valve Circuit
• DTC C0243 EBCM Control Valve Circuit
• DTC C0244 EBCM Control Valve Circuit
• DTC C0245 EBCM Control Valve Circuit
• DTC C0246 EBCM Control Valve Circuit
• DTC C0247 EBCM Control Valve Circuit
• DTC C0248 EBCM Control Valve Circuit
• DTC C0251 EBCM Control Valve Circuit
• DTC C0252 EBCM Control Valve Circuit
• DTC C0253 EBCM Control Valve Circuit
Sure looks like the ( EBCM ) Electronic Brake Control Module needs to be replaced .All these codes mean The EBCM detects an internal malfunction. Is the abs light on ?

Jan 06, 2015 | Cars & Trucks

1 Answer

I have an 2004 Chevy Tahoe 4x4 4.8l with code c0237. How hard is it to replace the throttle position sensor?


C0237? That is an erratic rear speed sensor fault. Is your abs light on? The speed sensor may be unplugged, wire harness damaged, sensor may be failing. The tps is part of the throttle motor assembly. Very expensive, but very easy to change.

Nov 11, 2014 | 2004 Chevrolet Tahoe

1 Answer

Im trying to fix a p38 1999 wabcoD abs traction failure prpblem, live data for the abs sensors signal all round are the same and goes up and down with road speed.the wheel speed os&ns rear,up


Erratic signals come from the speed sensors(all that I found). At the sensors by the tires/CV axles. When I tear them apart (the bearings) they have fine metal around them. The causes the erratic signals. As you said, they seem normal at most points. But you have to watch and see where(the signal) they jump. Could be 2 MPH or 20 MPH. Replace that wheel bearing.

Oct 29, 2014 | Cars & Trucks

1 Answer

What does code co237 mean


C0237 Speed sensor erratic, rear

Jan 25, 2014 | 2000 Chevrolet Silverado

2 Answers

ABS and OD lights are on and transmission is kicking out could this all be related


Could be a fuse or a wheel speed sensor; next, check the tone rings on the axle shafts and see if they are not broken.

I quote this information from Jeep lover's...

The amber ABS warning lamp is located in the instrument cluster. It is used to inform the driver that the antilock function has been turned off due to a system malfunction. The warning lamp is controlled by the CAB and/or the main relay through an in-harness diode. The CAB controls the lamp by directly grounding the circuit. The main relay grounds the lamp circuit when it is de-energized.
The re BRAKE warning lamp is located in the instrument cluster. It can be activated by application of the parking brake or leak in the front or rear wheel brake hydraulic circuit.
The antilock brake controller (CAB) is a microprocessor-base device that monitors wheel speeds and controls the anttlock function.
The primary functions of the CAB are:
- monitor wheel speeds
- detect wheel locking tendencies
- control fluid pressure modulation to the brakes during antilock stop operation
- monitor the system for proper operation
- provide communication to the DRB while in diagnostic mode
- store diagnostic information in non-volatile memory
The CAB continuously monitors the speed of each wheel. When a wheel locking tendency is detected, the CAB will command the appropriate valve to modulate brake fluid pressure in its hydraulic unit. Brake pedal position is maintained during an antilock stop by being a closed system with the use of 3 accumulators. The CAB continues to control pressure in individual hydraulic circuits until a wheel locking tendency is no longer present. The CAB turns on the pump/motor during an antilock stop.
The antilock brake system is constantly monitored by the CAB for proper operation. If the CAB detects a system malfunction, it can disable the antilock system and turn on the antilock warning lamp. If the antilock function is disabled, the system will revert to standard base brake system operation.
The CAB inputs include the following:
- four wheel speed sensors
- stop lamp switch
- ignition switch
- main relay voltage
- pump/motor relay output
- diagnostic communication ISO/K
- G switch (acceleration switch)
The ABS main relay is located in the power distribution center (PDC). The main relay has two functions. First, when the relay is energized, it supplies power to the valve/solenoids in the valve block assembly and the pump/motor relay coil. Second, when the relay is de-energized, it supplies a ground to turn on the ABS warning lamp. The main relay is controlled by the CAB. The CAB energizes the main relay when it receives an ignition input signal.
The ABS pump/motor relay supplies power to the pump/motor. It is also located in the PDC. The relay coil is powered by the main relay and the coil ground is controlled by the CAB. The pump/motor relay is a special five-terminal relay and should not be replaced with a standard relay.
One wheel speed sensor (WSS) is located at each wheel and sends a small AC signal to the control module (CAB). This voltage is generated by magnetic induction when a toothed sensor ring (tone wheel) passes by a stationary magnetic sensor (wheel speed sensor). The CAB converts the AC signals into digital signals for each wheel.
The front wheel speed sensor air gap is NOT adjustable. The correct front wheel speed sensor air gap is from 0.40mm to 1.3mm. Preferred rear sensor air gap for drum brake systems is 1.1mm. Acceptable air gap range is 0.92mm to 1.275mm. For rear disc brake systems, the preferred rear sensor air gap is 1.2mm. Acceptable air gap range is 0.95mm to 1.45mm. All wheel speed sensors have a resistance between 900 and 1300 ohms.
Correct antilock system operation is dependent on tone wheel speed signals from the wheel speed sensors. The vehicle's wheels and tires should all be inflated to the recommended pressures for optimum system operation. Variations in wheel and tire size or significant variations in inflation pressure can produce inaccurate wheel speed signals; however, the system will continue to function when using the mini-spare. When driven over rough road surfaces, the rear wheel speed sensor signals may be erratic and cause a false trouble code (drum brakes only).
Diagnostic trouble codes are retained in memory until erased using the DRB, or automatically erased after 50 key cycles.
Ensure you are using a DRBIII scan tool properly connected to the data link connector located under the dash to the right of the steering column.
Select "Anti-lock Brakes" the "Teves ABS". Turn the ignition on.
Read and record all ABS diagnostic trouble codes. If the "Valve Power Feed Circuit" trouble code is present, it must be repaired before prior to addressing any other DTCs.
If there are no trouble codes present, select "Inputs/Outputs" and read the brake switch input as you press and release the brake pedal. If the display does not match the state of the pedal, check for 8 volts at the brake lamp switch output circuit. If the voltage is not present, repair the open brake lamp switch output circuit. If the voltage is present, replace the CAB.
If the display does match the state of the pedal, read the "G-Switch" status, with the vehicle on a level surface, both switches should read "CLOSED". If the status is not correct, make sure the G-Switch is properly mounted and connected (under the driver's side rear seat). If it looks correct, you'll have to check for voltage to the G-Switch.

Hope helps.

Jan 18, 2011 | 1995 Jeep Grand Cherokee

1 Answer

Have error codes C1175 & P1000 for a 2002 Jaguar X-type 2.5.


C1175 ABS/TCCM Anti-lock braking / traction control LH rear wheel speed sensor circuit fault ABS/TCCM to wheel speed sensor signal circuit (FH33-21): open circuit, short circuit to ground, short circuit to B+ voltage, high resistance LH rear wheel speed sensor failure
P1000 is for check not complete after last memory clear , dont worry about it , just stick with C1175 , and most probably it is the sensor wire

Jul 25, 2009 | 2002 Jaguar S-Type

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