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Used bcm radio reads locked - 2002 Chevrolet Impala

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I install a used bcm in my 2007 saturn outlook every thang works but the radio is looked ican not get it to do anythang

When you disconnected the battery to install the bcm you activated the theft system on the radio. This is designed to lock the radio if the power is disconnect. You need to get the radio code from the dealer or look in your paperwork for the car

Jun 01, 2017 | Saturn Cars & Trucks

1 Answer

BCM in 2005 Saturn Vue

Remove the radio bezel. Refer to Radio Replacement .
Disconnect the body control module (BCM) electrical harnesses.
Remove the BCM from the instrument panel (I/P) retainer:
3.1. Pry the BCM tabs from the locking tabs on the underside of the restraint.
3.2. Slide the BCM out of the retainer

The BCM needs to be programmed if replaced !
The body control module (BCM) must be programmed with the proper RPO configurations. The BCM stores the information regarding the vehicle options and if the BCM is not properly configured with the correct RPO codes, the BCM will not control all of the features properly. Ensure that the following conditions exist in order to prepare for BCM programming:
• The battery is fully charged.
• The ignition switch is in the ON position.
• The data link connector (DLC) is accessible.
• All disconnected modules and devices are reconnected before programming.
The following procedures need to be performed to properly configure a BCM:
BCM Programming
Passlock Learn
Program Key Fobs

Body Control Module (BCM)
In the center of the I/P, behind the HVAC control module

Dec 06, 2016 | Saturn Cars & Trucks

1 Answer

2002 chevy malibu cranks wont start. fuel and temp gauge dont work. radio reads cal

Cranks won't start , Did you check for spark ,fuel pressure ?
Radio Setup .Will the vehicle communicate with a scan tool ? Fuel an temp gauges not working are probably bad step motors inside the instrument cluster that controls the gauges . Where do the gauges read 0 or something else ?
Engine Coolant Temperature Gage
The IPC displays the engine coolant temperature as determined by the PCM. The body control module (BCM) receives a class 2 message from the PCM indicating the engine coolant temperature. The BCM converts the engine coolant temperature into a percent gage deflection. The IPC receives a message from the BCM via the serial peripheral interface (SPI) indicating the requested gage position. The engine coolant temperature gage defaults to 38°C (100°F) or below if:
The PCM detects a malfunction in the engine coolant temperature sensor circuit.

The BCM detects a loss of class 2 communications with the PCM.

The IPC detects a loss of SPI communications with the BCM.

Fuel Gage
The IPC displays the fuel level as determined by the PCM. The body control module (BCM) receives a class 2 message from the PCM indicating the fuel level percent. The BCM converts the fuel level percent into a percent gage deflection. The IPC receives a message from the BCM via the serial peripheral interface (SPI) indicating the requested gage position. The fuel gage defaults to E (empty) if:
The PCM detects a malfunction in the fuel level sensor circuit.

The BCM detects a loss of class 2 communications with the PCM.

The IPC detects a loss of SPI communications with the BCM.

When the fuel level is less than a pre-determined value, the low fuel indicator illuminates.
DTC P0462
The fuel level sensor changes resistance based on fuel level. The PCM monitors the signal circuit of the fuel level sensor in order to determine fuel level. When the fuel tank is full, the sensor resistance is high and the PCM senses a high signal voltage. When the fuel tank is empty, the sensor resistance is low and the PCM senses a low signal voltage. The PCM uses the signal circuit of the fuel level sensor in order to calculate the total remaining fuel in the tank. The PCM sends the fuel level percent via the class 2 serial data circuit to the body control module (BCM). The BCM converts this data and sends a fuel gage percent deflection to the IPC via the serial peripheral interface (SPI) in order to control the fuel gage. The fuel level information is also used for misfire and EVAP diagnostics.

For the DE 100 series radio, complete the following procedure, using a scan tool, in order to properly set up communication:

  1. At the Main Menu screen, select: Diagnostics.
  2. At the Vehicle Identification screen, select the following options:
  3. ?€¢
    Model Year

    Passenger Car

  4. At the System Selection Menu screen, select: Body.
  5. At the Vehicle Identification screen, select the Platform type.
  6. At the Body screen, select: Radio.
  7. At the Radio screen, select: Special Functions.
  8. At the Special Functions screen, select: Radio Setup.
  9. At the Radio Setup screen, press ENTER. The following test will set up a new or existing radio.
  10. Select one of the following options:
  11. ?€¢


  12. Press the ENTER key.
  13. Verify that the scan tool displays "Test in Progress."
  14. Verify that the scan tool displays "Test Completed Successfully."
  15. Press EXIT on the scan tool.
Important: The radio set up will configure the following systems:

Diagnostic Trouble Codes

Class 2 Radio Messages

Country Code

Chime Volume

Chime Level

12/24 Hour Clock

Without learning the VIN, the radio will display a locked message (LOC).
The radio setup procedure will also clear the following messages:



May 29, 2016 | Cars & Trucks

1 Answer

How do i know what fuse has blown after replacing battery? when i replaced the battery the radio,air conditioning, alarm, seats and door locks stop working, why?

All these are different fuses. It could be a main fuse under the hood. Square ones. You can look and see if they're blown. If they look the same. I would pull them out and reinsert them(corrosion). If the parts still don't work. Have the BCM read. Can't read the BCM, it has died. Batteries should be hooked up Positive+ first, then Negative-.

Aug 14, 2015 | 2006 Chevrolet Trailblazer

1 Answer

2008 GMC Acadia radio won't turn on

The radio and BCM needs read for codes. No reason for the radio not to work after a FOB program. Just a guess, but if the battery power was to low, radio is locked out.

Mar 06, 2013 | 2008 GMC Acadia

1 Answer

Radio shuts off

Security Code (Theft-Deterrent) required or Fuse blow. Recently unplugged the battery? or any work in there?

Theft-Deterrent Feature
THEFTLOCK is designed to discourage theft of your radio. Your vehicle has a “built-in” theft-deterrent feature on each radio that is automatic -- there is no programming required. The radio in your vehicle cannot be used in any other vehicle. When the radio was originally installed in your vehicle at the factory, it stored the Vehicle Identification Number (VIN).

Each time the ignition is turned on, the VIN is verified. If the vehicle’s VIN does not match the VIN stored in the radio, THEFTLOCK will be activated and the audio system will not play. If the radio is removed from your vehicle, the original VIN in the radio can be used to trace the radio back to your vehicle.

To read the similar articles.

Instrument Panel Fuse Block (driver's side)
I suggest check in your Catera Owners Manual the FUSES position 6 and 26 for RADIO.


Also, other experts comment that, when servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

Condition / Concern:
Radio inoperative with key on, auto door lock feature disabled, a/c compressor does not engage and DTC U1255 stored in the radio. Radio may work in rap or accessory until the door is opened.

Recommendation / Instructions:
Cause: Clamp 15A, fuse #10, 10 amp fuse blown to the BCM/PZM, terminal A11. This fuse is normally powered in run and not during cranking. When this fuse is blown, the BCM acts as though it is in the crank mode with the key on. The BCM turns the radio off via CLASS 2 and inhibits auto door lock operation. The HVAC control head inhibits a/c compressor operation.

1. Replace the 10AMP #10 fuse.
2. Check the heater water pump located at the right wheel well area for a leak. Also, check the auxiliary pump located on the left side of the radiator support for a leak. If either pump is leaking, coolant may be dripping onto a connector for this fused circuit which may cause a short to ground condition.
3. If both pumps are okay, install in-line fuses rated less then the fuse in question for each component affected to isolate the failed circuit.

Models: (97, 98, 99, 00, 01 Cadillac Catera)

Hope this help (remember comment and rated this).

May 06, 2010 | 2001 Cadillac Catera

2 Answers

1999 escalade windows wipers and radio dont work

That be yer BCM or Body Control Module. Its located under your center console. I have the same exact problem.

Jan 14, 2010 | 1999 Cadillac Escalade

1 Answer

Replaced BCM now radio locked?

You will have to take it to the dealer and have them run a radio setup with the Tech2. The VIN's in the BCM and the radio do not match therfore the radio locks.

Good Luck

Sep 05, 2008 | 2001 Pontiac Aztek

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