Dtc gt7 reset - Cell Phones

SERVICE TRAILER BRAKE SYSTEM
This message will be displayed when there is a problem with the TBCM system. If this message persists over multiple ignition cycles there is problem with the TBCM system. Take your vehicle to an authorized GM dealer to have the TBCM system diagnosed and repaired.

Do you know what DTC'S - diagnostic trouble code's are ?
DTC B3894
DTC C0561
DTC C056D or C056E
DTC C0800
DTC C0845
DTC C0870, C1112, C1113, C1114, or C1119
DTC C0880, C0890, C1115, C1116, C1117, or C1118

Your best bet , take it to a qualified repair shop.

You need to have a scan tool hooked up to read DTC'S diagnostic trouble codes ! These would be hard faults .
DTC 6 Theft Deterrent Relay Control Circuit Shorted
DTC B2734 Coded Key Controller Memory Failure
DTC B2960 Invalid Coded Key Present
DTC B3031 Key Decoder Device in Assem Learn Mode
DTC B3055 Key Not Present.
Do you have another key you can try .

First off, did you pull any error codes?

The speedometer is capable of displaying & clearing speedometer , tachometer TSM/TSSM , HFSM , ECM , ABS Diagnostic Trouble Codes also known as DTC's.
1 - Turn the ignition switch to off & run/stop switch is to run .
2 - Push odometer reset button in & HOLD .
3 - Turn the ignition switch on and then release odometer reset button . The background lighting should illuminate & the speedometer needle should sweep it's full range & indicator lamps ( battery , security , low fuel , check engine and cruise ) should illuminate . The word "DIAG" should then appear .
4 - Push the odometer reset button once and you will see the selection menu "PSSPtb" with the first P flashing .
5 - Each letter represents a area of the diagnostics module . The module that is flashing is the one you are going to check . To move from one letter to the next you must push the odometer reset button one time . ( from P to S to SP to t to b and back to P , ect ect )
P = ECM
S = TSM/TSSM/HFSM
SP = speedometer
t = tachometer
b = ABS codes
6 - To get the DTC code in a area of diagnostics you should PUSH & HOLD the odometer reset button in for 5 seconds and the release . If there are any DTC's the code will be displayed or the word " none " will appear if there are no DTC's . Push the odometer reset button again to view any additional codes if they exist .
7 - Record the codes .
8 - If DTC's are NOT to be cleared , press and release the odometer reset button . Part #of module will be displayed .
9 - If DTC's are to be cleared for that module , PRESS & HOLD the odometer reset button until " clear " is displayed .
10 - Press and release the odometer reset button to continue to the next module .
11 - Turn the ignition switch off to exit the diagnostic mode .


If you DO get any error codes, repost them for diagnosis.

Dtc GT5s hard reset

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P0603 - GM Type Powertrain - Computer and Auxiliary Outputs - ISO/SAE Controlled Description Control Module Long Term Memory Reset Conditions
Cause DTC P0604 not set, key on, then the PCM determined that its calculated checksum that did not match a previous checksum • Refer to code repair chart for instructions on how to replace a PCM and how to reprogram the replacement
or you can ask the 24 hrs live technical support obd2 bmw icom, they will like to help you, good luck

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There is no reset , if security light is lit there is a problem with the anti-theft system .Should have it checked for DTC'S - diagnostic trouble codes . Could have 8 different B - codes
DTC B0685 DTC B2955 DTC B2960 DTC B3031 DTC B3033 DTC P1626 DTC P1630 DTC P1631
You would need a professional type scan tool to read these type codes , not an OBD 2 code reader .

The IM (instrument module) is capable of displaying DTC's (diagnostic trouble codes).
Speedometer Self Diagnostics: The speedometer is capable of displaying and clearing speedometer, tachometer, TSM/TSSM and ICM/ECM Diagnostic Trouble Codes (DTC).

1- Turn Ignition switch to OFF & Run/Stop switch is to Run.

2- Push odometer reset button in & hold.

3- Turn ignition switch to Ignition and release odometer reset button. Background lighting sould illuminate, speedometer needle should sweep its full range and indicator lamps (battery, security, low fuel, check engine and cruise) should illuminate. The word "diag" should then appear.

4 - Push the odometer reset button once and you will see the selection menu "PSSPt" with the first P flashing.

5 - Each letter represents an area of the diagnostics module. The module that is flashing is the one you are going to check. To move from one letter (module) to the next, you push the odometer reset button one time. (from P to S to SP to t and back to P, etc.)
P = ECM/ICM (Electronic Control Module [EFI] / Ignition Control Module [Carbureted])
S = TSM/TSSM (Turn Signal/ Turn Signal Security Module)
SP = speedometer
T = tachometer

6 - To get the DTC within an area of diagnostics, push and hold the odometer reset button in for 5 seconds and release. If there are any DTC's the code will be displayed or the word "none" will appear if there are no DTC's. Push the odometer reset button again to view additional codes if they exist.

7 - Record the codes.

8 - If DTC's are not to be cleared, Press and release the odometer reset button. Part number of module will be displayed.
NOTE: To determine if a code is current or historic, clear the displayed code by pushing in and holding the odometer reset button ( longer than 5 seconds) until 'clear' comes up. Release the odometer reset button. Turn OFF the ignition switch. Run your bike and shut it down then recheck the DTC's again by repeating steps 1 to 9. If the code is current it will reappear.

9 - Press and release the odometer reset button to continue to the next module.

10 - Turn Ignition switch to OFF.

You May need to Use The Old Ignition Lock & Key ,Due to the Chip In the Key.


Circuit Description

The PCM has a memory area where it stores certain data it needs to save when the key is turned OFF. This area is called Keep Alive Memory. This diagnostic test monitors the PCM's keep alive memory for a loss or unintended change of data. If such a condition occurs, DTC P0603 will set.

Conditions for Setting the DTC

Test Condition

Test continuously.

Failure Condition

Keep alive memory checksum does not match previous checksum.

Action Taken When the DTC Sets

• Clear all keep alive memory locations.
• The Malfunction Indicator Lamp (MIL) will not illuminate.
• No message will be displayed.

Conditions for Clearing the DTC

• A History DTC will clear after forty consecutive warm-up cycles with no failures of any non-emission related diagnostic test.
• A Last Test Failed (current) DTC will clear when the diagnostic runs and does not fail.
• PCM battery voltage is interrupted.
• Using a Scan tool.

Diagnostic Aids

If the battery has been disconnected for any reason DTC P0603 will set. The PCM keeps a running check on the memory; if memory changes it resets. An intermittent loss of power or ground to the PCM will cause a reset.