2005 truck. What are the probable causes of DTCs C0035,C0040,and C0201?

DTC C0040 Right Front Wheel Speed Sensor Circuit --
Conditions for Setting the DTC
C0035 C0040 C0045 C0050
One of the following conditions exists for 0.02 seconds:
• A short to voltage in the wheel speed sensor signal circuit.
• An open in the wheel speed sensor signal circuit.

Diagnostic Aids
C0035 C0040 C0045 C0050
If the customer comments that the ABS indicator is ON only during moist environmental conditions (rain, snow, vehicle wash, etc.), inspect the wheel speed sensor wiring for signs of water intrusion. If the DTC is not current, clear all DTCs and simulate the effects of water intrusion by using the following procedure:
Spray the suspected area with a 5 percent saltwater solution. To create a 5 percent saltwater solution, add 2 teaspoons of salt to 354 ml (12 oz) of water.
Test drive the vehicle over various road surfaces (bumps, turns, etc.) above 40 km/h (25 mph) for at least 30 seconds.
If the DTC returns, replace the suspected wheel speed sensor or repair the wheel speed sensor wiring.
Rinse the are thoroughly when completed.


Replace the EBCM. Refer to Control Module References for replacement, setup, and programming.
Did you complete the repair?

I don't think so? The first two codes are for left and right front wheel speed sensors. The last code is for abs system, the codes are all connected.
Make sure the wheel speed sensors are connected and clean. Just my opinion. Depending on the issue, you may need more diagnostics on the abs system?

C0040
Right Front Wheel Speed Sensor Circuit Malfunction
EBCM
DTC C0035-C0051

The wheel speed sensor produces an alternating current signal whose amplitude and frequency vary, depending on the velocity of the wheel. The electronic brake control module (EBCM) uses the frequency of the AC signal to calculate the wheel speed.

This wouldn't have anything to do with not starting ! Won't start how ? When you turn the key to the start position what happens ? Does the starter engage an spin the engine ? This would be a crank no start , now if nothing happens when you turn the key this is a no crank - no start .

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.

They seem to be related to ABS. Is your ABS service light on? If so, it could be a sensor.

First you'll need to take it to have DTC's - diagnostic trouble codes check to find out what part of the system is at fault ! Could have a sensor , control module ,or wiring problem !
Traction Off Indicator The traction off indicator, which is a LED located on the traction control switch, illuminates only when the traction control switch has been pressed and released, disabling traction control. It is important to note that a traction fault does not illuminate this indicator and that there is no relationship between this indicator and the traction fault message.
Traction Fault Message The IPC displays the traction fault message when either of the following instances occur.
?€¢
The EBCM detects a malfunction that requires traction control to be disabled. The EBCM sends a serial data message to the IPC requesting that the message be displayed.

?€¢
The IPC detects a loss of serial data communication with the EBCM

Traction Control System (TCS)
When drive wheel slip is noted while the brake is not applied, the EBCM will enter traction control mode.
The EBCM uses a 5-volt pulse-width modulated (PWM) signal to request the PCM to reduce the amount of torque to the drive wheels. The PCM reduces torque to the drive wheels by retarding spark timing and by commanding the throttle actuator control. The PCM uses a 5-volt PWM signal in order to report to the EBCM the amount of torque delivered to the drive wheels.
You would need a factory grade scan tool to check data PID's - parameter identification , all the sensors work within a specific voltage range 1- 5 volts an you can see this on a good scan tool !
The Traction control is part of the ABS system an there a several DTC possible
DTC B0827 DTC B0828 DTC B2745 DTC C0035 DTC C0035 or C0040 DTC C0040 DTC C0055 DTC C0110 DTC C0191 DTC C0201 DTC C0220-C0229 DTC C0240 or P0856 DTC C0244 or P1689 DTC C0245 DTC C0267 or C0268 and C067 or C068 DTC C0550 DTC C0899 DTC C0900
You best bet is to take it to a qualified repair shop !

You

need more info to enter into database, VIN would be best

buen dia por favor necesito ayuda tengo una trailblazer 4x4 2004 6C motor vortec y se le bajo la presion de aceite ya se le monto la bomba y no sube muchas gracias...

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.

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.