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I have Code - C0550 ECU/CCU Malfunction - 2002 Chevrolet TrailBlazer

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Have a 2004 gmc yukon getting codes c0040, c0550,c0455,c0296 in the abs computer. Trac and abs light on as well as suspension control.


C0040 - Right Front Wheel Speed Circuit Malfunction
C0550 - ECU Malfunction - internal write / checksum malfunction
C0455 - Either:
  • A bent terminal or poor connection at the SWPS may be one possible cause; or
  • The vehicle stability enhancement system (VSES) electronic brake control module (EBCM) calibration may be the other possible cause.
C0296 - Transfer Case Delivered Torque for Stability Control System Circuit
http://www.obd-codes.com/trouble_codes/obd-ii-c-chassis-codes.php

Feb 27, 2015 | 2004 GMC Yukon

1 Answer

Push button for four wheel drive isn't working


Do you have any lights on the dash lit ?
SERVICE indicator (4WD/AWD) Lamp
The SERVICE indicator (4WD/AWD) lamp is an integral part of the cluster and cannot be serviced separately. This lamp is used to inform the driver of the vehicle of malfunctions within the automatic transfer case (ATC) system. The SERVICE indicator (4WD/AWD) lamp is controlled by the transfer case shift control module via CKT 1567. this system will set DTC'S if there is a problem .
Diagnostic Trouble Codes DTC B2725 ATC Mode Switch Circuit Malfunction DTC C0300 Rear Speed Sensor Malfunction DTC C0305 Front Speed Sensor Malfunction DTC C0308 Motor A/B Circuit Low DTC C0309 Motor A/B Circuit High DTC C0310 Motor A/B Circuit Open DTC C0315 Motor Ground Circuit Open DTC C0323 T-Case Lock Circuit Low DTC C0324 T-Case Lock Circuit High DTC C0327 Encoder Circuit Malfunction DTC C0367 Front Axle Control Circuit High DTC C0374 General System Malfunction DTC C0376 Front/Rear Shaft Speed Mismatch DTC C0387 Unable to Perform Shift DTC C0550 ECU Malfunction DTC C0611 VIN Information Error you probably should take this to a repair shop !

This tt

Feb 22, 2015 | 1999 Chevrolet Silverado 1500

1 Answer

I have a 2002 toyota prius that will not start only code is p3030 what can I do to fix this I have cleard the code and as soon as I trun the key on it pops right back up


Error Code: P3030
Description: Disconnection between battery and ECU.

The battery ECU monitors a voltage of the battery blocks to detect an open malfunction in internal battery voltage sensor circuits of the battery ECU and the wire harness between each battery block and battery ECU. If a voltage at one of the battery blocks is below a standard level or of all the battery blocks is within a specified range, the battery ECU judges that there is an open in the internal sensor circuit(s) or wire harness. The battery ECU then illuminates the MIL and sets a DTC (Diagnostic Trouble Code).
Trouble Area:
- Junction Block Assembly (Bus Bar Module).
- Frame wire number 2, (Bus Bar and wire harness).
- Battery ECU.

Aug 09, 2014 | 2002 Toyota Prius

1 Answer

What would make my service abs system,service brake system,service traction system,service stability system come on with the ecu/ccu malfunction code c0550


You have to realize that your wheel speed sensor is what tells all of these systems what each wheel is doing, I would think one of these would be the problem, but without putting it on a computer you can't know which one.

Jul 26, 2014 | Cars & Trucks

1 Answer

2000 chevy siverado z71 4x4 not working


Yes we can ! With the light on and or flashing , DTC'S - diagnostic trouble codes are stored in the 4X4 control module . Have the codes check , not at auto zone or any other parts stores . There code reader tool will not pull this codes . Need to take to a qualified repair shop . Testing also needs to done , not guessing an throwing parts at it . This 4X4 system can set a number of codes .
DTC B2725 ATC Mode Switch Circuit Malfunction
DTC C0300 Rear Speed Sensor Malfunction
DTC C0305 Front Speed Sensor Malfunction
DTC C0308 Motor A/B Circuit Low
DTC C0309 Motor A/B Circuit High
DTC C0310 Motor A/B Circuit Open
DTC C0315 Motor Ground Circuit Open
DTC C0323 T-Case Lock Circuit Low
DTC C0324 T-Case Lock Circuit High
DTC C0327 Encoder Circuit Malfunction
DTC C0362 4LO Discrete Output Circuit High
DTC C0367 Front Axle Control Circuit High
DTC C0374 General System Malfunction
DTC C0376 Front/Rear Shaft Speed Mismatch
DTC C0387 Unable to Perform Shift
DTC C0550 ECU Malfunction
DTC C0611 VIN Information Error

DTC C0387 Unable to Perform Shift
Circuit Description
The transfer case encoder is a switch that converts a shaft position, representing a mode or range position, into electrical signals for use by the transfer case shift control module. The encoder houses 4 Hall effect sensors that are used for channels P, A, B, and C. These sensors provide a path to ground, when a magnet, (part of the Motor Encoder), passes over them.
The transfer case shift control module supplies an 8 V reference and a ground circuit for the encoder hall effect sensors to function.
The transfer case shift control module supplies current limited 5 V on all the channels, thus as these channels are pulled to ground, the module can interpret the location of the transfer case shift position.
This DTC detects that the transfer case is unable to successfully complete a shift to a requested mode or range.

May 07, 2017 | 2000 Chevrolet Silverado 1500

1 Answer

Toyota corolla 1997 engine code p1300 ignitor circuit malfunction #1 car starts after 2 minutes will stop


Error Code P1300/ 14. Igniter signal malfunction No.1
Problem Areas:
IGNITION SIGNAL--NO "IGF" SIGNAL TO ECU
--IGNITER/IGNITER CIRCUIT
--IGNITER AND IGNITION COIL/CIRCUIT
--IGNITION AMPLIFIER/ DISTRIBUTOR.
--ECU

Oct 18, 2013 | Toyota Corolla Cars & Trucks

1 Answer

C0550


The C0550 means that "ECU Malfunction internal write/ checksum malfunction", luck for you!
T300+ key programmer

Jul 19, 2012 | 2004 GMC Envoy

2 Answers

Toyota 4runner 1994 engine codes 12,52,71 what are these


Code 12 Engine revolution signal missing
Code 52 Knock sensor fault
Code 71 EGR system malfunction

May 04, 2011 | Toyota 4Runner Cars & Trucks

1 Answer

I have 2002 envoy with service 4wd light on a code co550 ecu/ccu malfunction .where do i go


Replace the transfer case module.this module will need to be programmed by a gm dealer.Co550 is a internal fault code.bulletin from gm for this.

Dec 02, 2010 | 2002 GMC Envoy

1 Answer

Wauxhall Vectra B ECU err. code 1528


P1528 Subsidiary Throttle Valve Solenoid Circuit Malfunction
P1503 Auxillary Speed Sensor Fault
P1530 A/C Clutch Circuit Malfunction

Jun 19, 2009 | 1997 Volkswagen Golf

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