2007 H2 rear view camera fail
 

Hi,
I looked for it but didnt find any information related to this. I apologize in advance, if this is already answered and i missed finding it.

The camera sometimes slides out of the rear view mirror and sometimes it does not. No video is showing. Where can i find instructions on how to take it off and check if i can repair anything? or get a replacement mirror installation.

The other option i was thinking was buying a license plate mount camera with wireless portable receiver. But will need instructions on how to wire it through to the backup light.

Thanks for any help and guidance any one can provide.

https://cimg9.ibsrv.net/gimg/www.hum...96d6dfc20d.jpg

haha. Thanks!! google should know everything :)

https://cimg1.ibsrv.net/gimg/www.hum...c78c2dda49.jpg

Thank you !! will look here.

Here are some thoughts:

- Try troubleshooting - if you get no video, the issue is the camera, the cable or the mirror. Start at the mirror, unplug/reset and see if it is connection issue. If not good, go back to the camera and check the wiring behind the rear bumper and unplug/reset
- If you have the navigation system installed, you can buy a cable that will split the video feed to both the rear mirror and the nav system - you may need to have the dealer turn the rear camera option on your nav. If you get video to the nav, but not the mirror... then your mirror is the issue. If no video to the nav or mirror, then the camera is the issue. The part is from Infotainment and is a reroute kit for the video feed... will require pulling the nav out... https://www.infotainment.com/product...ge-reroute-kit
- The rear camera is still a stocked GM part and can be replaced if needed- The rear view mirror is still a stocked GM part and can be replaced if needed

I opened another thread seeing if anyone has replaced with the new GM rear camera mirror system...

So is it "rear view camera" "backup camera" "Back-up camera" "reversing camera" so many different descriptions to search for.

"Backup camera" gets a lot of hits.

Here's the original link to Problem with limited edition h2 (rear view camera) which I'm sure you've found by now, plus some others which may help you, you can always PM to see if they can help.

2007 H2 oem backup camera issue

Advice on backup camera location

08 H2 Factory Backup Camera Replacement Options & Wiring

backup camera wont slide out...

Hummer H2 rear view 2nd gen camera video

2007 H2 Rearview Mirror

Help with OEM Rear View Camera System

One quote from these posts "Are the backup lights working? check to make sure they are. If they are I would lean more towards the mirror itself. If they do not work then maybe a switch problem." courtesy of calif phil

Here is some info from the GM Manual, not sure how helpful it is but sounds like a scan tool would help.

Circuit/System Description
The inside rearview mirror (ISRVM) has only one voltage source for operation of all mirror functions. With the ignition in RUN all functions of the ISRVM will default to ON. The dual temperature display and rear vision indicators will be illuminated. The ISRVM receives a 12-volt signal from the body control module (BCM) indicating that the vehicle is in reverse gear. The rear vision display will then be deployed from the ISRVM providing a view to the rear of the vehicle. When the display is extended the ISRVM will supply the camera with a 12-volt power source. If a problem exists with the object detection display not deploying or if a proper video signal is not detected, the rear vision ON/OFF indicator located on the ISRVM will flash.


Object Detection Description and Operation (Rear Vision Camera)
The object detection system can help a driver determine how close an object is to the rear bumper within a predefined rearward field of view. The system is composed of a video camera located on the rear bumper, electrical harness and a 3.5 inch LCD display integral to the inside rearview mirror (ISRVM). The object detection system can be disabled by pressing and holding the rear vision ON/OFF button for 3 seconds when the ignition switch is in the ACCESSORY or RUN position. When the object detection power button is pressed the lower LED indicator to the right of the power button will turn off verifying that the system is OFF. The slide-out video feature will remain in the current ON/OFF state during each ignition cycle.

The ISRVM and rearview camera image display module requires B+ signal to enable the rear vision system. This signal is provided by the park/neutral position (PNP) switch (automatic transmission) or backup lamp switch (manual transmission) when placing the transmission in reverse. When the transmission is in the reverse, the rearview camera image display module will supply the camera with a regulated 12-volt power source and ground. The LCD display will deploy and remain deployed until the transmission is moved out of the reverse position. Once the transmission is moved out of the reverse position the display will retract. Anything preventing the display from fully extending will cause the display to retract. A shielded video signal circuit will transfer the video signal through the rearview camera image display module to the ISRVM display.

The mirror can be placed into a service mode to facilitate screen cleaning. With the ignition in the ACCY position, press and hold the rear vision power button for 5-8 seconds or until the display is deployed. The display will remain deployed for 30 seconds. Do not attempt to pull out the display as that may cause internal damage.

The object detection system has the following diagnostic capabilities:

• The rear vision ON/OFF indicator will flash with the absence of a proper video signal

• The rear vision ON/OFF indicator will flash when interference of the display deployment has been detected

To begin diagnostics refer to Diagnostic Starting Point - Object Detection .


Rear Vision Camera System Malfunction
Diagnostic Instructions
• Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

• Review Strategy Based Diagnosis for an overview of the diagnostic approach.

• Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Circuit/System Description
The inside rearview mirror (ISRVM) has only one voltage source for operation of all mirror functions. With the ignition in RUN all functions of the ISRVM will default to ON. The dual temperature display and rear vision indicators will be illuminated. The ISRVM receives a 12-volt signal from the body control module (BCM) indicating that the vehicle is in reverse gear. The rear vision display will then be deployed from the ISRVM providing a view to the rear of the vehicle. When the display is extended the ISRVM will supply the camera with a 12-volt power source. If a problem exists with the object detection display not deploying or if a proper video signal is not detected, the rear vision ON/OFF indicator located on the ISRVM will flash.

Circuit/System Verification

1. Inspect the rearview camera for any debris on the lens or a damage bezel or bezel seal - Clean any debris from the lens. If the lens, bezel, or bezel seal are damaged, replace as necessary
2. Ignition ON, vehicle in PARK, verify the backup lamps are OFF - If the backup lamps are illuminated, refer to Rear Vision System Always On.
3. Command the backup lamps ON with a scan tool, a clear rear view image should be displayed on the rear view camera display - If a clear image is not displayed, refer to Rear Vision System Does Not Display.

Circuit/System Testing
Rear Vision System Always On

1. Ignition OFF, disconnect the harness connector at the inside rear view mirror.
2. Ignition ON, vehicle in PARK, verify a test lamp does not illuminate between the control circuit terminal 9 and ground -
3. If the test lamp illuminates, test the control circuit for a short to voltage. If the circuit test normal, refer to Backup Lamps Always On .
4. If all circuits test normal, replace the inside rear view mirror.

Rear Vision System Does Not Display

1. Ignition OFF, disconnect the harness connector at the inside rearview mirror.
2. Ignition ON, vehicle in PARK, verify that a test lamp illuminates between the ignition circuit terminal 13 and ground ⇒ If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
3. Verify that a test lamp illuminates between the ignition circuit terminal 13 and the ground circuit terminal 8.⇒ If the test lamp does not illuminate, test the ground circuit for an open/high resistance.
4. Park brake applied, transmission in reverse, verify that a test lamp illuminates between the control circuit terminal 9 and ground.⇒ If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the body control module (BCM).
5. Ignition OFF, connect the harness connector at the inside rearview mirror. Disconnect the harness connector at the rear view camera.
6. Park brake applied, transmission in reverse, verify a test lamp illuminates between the ignition circuit terminal C and ground.⇒ If the test lamp does not illuminate, test eh ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the inside rearview mirror.
7. Park brake applied, transmission in reverse, verify a test lamp illuminates between the ignitioin circuit temrinal C and the ground circuit terminal D. ⇒ If the test lamp does not illuminate, test the ground circuit for an open/high resistance. If the circuit tests normal, test or repalce the inside rearview mirror.
8. Ignition OFF, disconnect the harness connector at the inside rearview mirror.
9. Ignition ON, test for less than 1 volt between the following signal circuit terminals and ground: • Video + circuit terminal 1 • Video- circuit terminal 2 ⇒ If greater than the specified value, test the signal circuit for a short to voltage.
10. Test for infinite resistance between the following signal circuit terminals and ground: • Video + circuit terminal 1 • Video- circuit terminal 2 ⇒ If less than the specifed value, test the signal circuit for a short to ground.
11. Test for less than 2 ohms of resistance between the video + circuit terminal 1 at the inside rearview mirror and the video + circuit terminal A at the rear view camera. ⇒ If greater than the specified range, test the video+ circuit for an open/high resistance.
12. Test for less than 2 ohm of resistance between the video- circuit terminal 2 at the inside rearview mirror and the video- circuit terminal E at the rear view camera.
13. If all circuits test normal, replace the rear view camera and test the system for proper operation. If the condition continues after replacement, replace the inside rearview mirror.

Also attached is a pdf of the circuit, again I don't know how helpful it will be to you.

This is the camera mounting position pdf (only one pdf per post)

I'll post the manual diagnostic info pdf in the next comment (only just found out how to print it)

Diagnostic info pdf


Hopefully you'll keep this thread up-to-date with your progress, had others done there might have been more clues to work from.

Good luck:)

Apologies the wiring posted previously was for a 2008, attached is for an 07, the circuit numbers I think are different.

So I dived into this as it seems to be a common problem (don't have one myself) don't think you need a scan tool for diagnostics.

Looking at the circuit, it seems to work as follows:-

• The rear view camera and mirror are powered on circuit Ref 13 (IGN) +12V with ground Ref 8 (0V)
• Circuit Ref 9 is the back-up lamp supply voltage (may originate from the BCU) this causes the display to deploy.

Display deployment may require a valid video signal, if this is missing i.e. bad connection or bad camera, then this could be the reason.

I'd be tempted to check both the mirror (ISRVM) connector and the camera connector.