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Pioneer GM-6367 Subwoofer in Honda CRV 2007 Not Functioning: Troubleshooting Ideas?

1boro5 16104 22
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Why does the factory Pioneer GM-6367 subwoofer in a 2007 Honda CR-V not turn on, and how can I troubleshoot its power and enable pins?

The most likely problem is that the amplifier is not getting its ST-BY/enable signal, not that the subwoofer amp is necessarily dead [#14347026][#14343926] In the thread, the unit could be made to wake up on the bench by applying 12 V to the ST-BY pin, but in the car that pin stayed at 0 V, so the car/radio is not providing the excitation signal [#14347026] Just seeing 12 V on ignition is not enough; you need to verify voltage at the power amplifier itself and check the wiring diagram/pinout so you know which connector pin is power, standby, and audio [#14339895][#14339924][#14344100] One reply also pointed out that the audio signal should be checked too, because missing signal could also prevent operation [#14347462] If you need a pin reference, the amp IC was identified as PAL006A, and the TDA7560 datasheet was suggested only as a way to compare pin functions, not as proof the chip is faulty [#14343558][#14343801]
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  • #1 14339844
    1boro5
    Level 11  
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    Hello
    I have been the owner of this car for a long time. Honda has a very good sound system. I knew that it has an original subwoofer under the passenger seat but today I noticed during the cleaning that it is not playing.
    I removed it, checked the fuses, checked if any voltage reaches it (12V arrives on the ignition), checked if everything on the radio is on. it seems to me that something may be damaged in the subwoofer amplifier.
    Is there anyone who can help me solve this problem?
    On the subwoofer (amplifier from it) the model is written: Pioneer GM-6367.
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  • #3 14339918
    1boro5
    Level 11  
    Posts: 44
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    Only there is a problem that I do not know how the power end is soldered there and I do not know which pin is from what.
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  • #4 14339924
    sosarek

    Level 43  
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    So unscrew radiator from it, write a model, look for a directory note, etc.
    Company Account:
    Z
    Pka, Poznań, 60-850
    Helpful post? Buy me a coffee.
  • #5 14339936
    1boro5
    Level 11  
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    I will try to do it tomorrow. I do not have time today.
  • #6 14339942
    Pawel wawa
    VIP Meritorious for electroda.pl  
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    Do not you have the impression that you want to repair it?
    1boro5 wrote:
    I checked if any voltage reaches it (it reaches 12V on ignition)

    did not you check too much?
  • #7 14339990
    1boro5
    Level 11  
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    Writing it meant that the plug from the Subwoofer is 12V and not at the end of the power.
    Only on one pin there is voltage.
  • #8 14342268
    Pawel wawa
    VIP Meritorious for electroda.pl  
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    So something too little.
  • #9 14343558
    1boro5
    Level 11  
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    Unscrewed the radiator and read the name of the power amplifier, it is PAL006A. Here a problem arises because I can not find a datasheet anywhere. Google does not help.
    On the forum I read that you can use TDA7560 instead. I found the new PAL006A for PLN 48, and the TDA7560 is more than half cheaper.
  • #10 14343602
    sosarek

    Level 43  
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    Why do you want to exchange the tip, not knowing if it is the reason for the inoperative subwoofer?
    Company Account:
    Z
    Pka, Poznań, 60-850
    Helpful post? Buy me a coffee.
  • #11 14343658
    1boro5
    Level 11  
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    Without a directory note I do not know which pin is for what. So I came up with the idea that the substitutes must have the same output so I will use the catalog notice from TDA7560 to get out which pins are from what. what do you think about this?
    I take into account all the possibilities of repairing this. What do you propose in this situation?
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  • #12 14343801
    sosarek

    Level 43  
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    Instead of exchanging, you can use the TDA7560 note when it comes to outputting and check if it gets the voltage (of course, put in the heat sink first).
    Company Account:
    Z
    Pka, Poznań, 60-850
    Helpful post? Buy me a coffee.
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  • #13 14343926
    Pawel wawa
    VIP Meritorious for electroda.pl  
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    Gentlemen, the wiring diagram in the car is needed. There is no excitation.
  • #14 14344100
    SZYMON BYDGOSZCZ
    Level 38  
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    The questioner did not even write whether he checked the voltage on the radio on or off.
  • #15 14344199
    1boro5
    Level 11  
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    In my car, after turning the ignition key, the radio switches itself on. And I checked the voltage as it was turned on.
  • #16 14347026
    1boro5
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    In peaceful conditions I managed to run the subwoofer, it was enough to give 12V to the ST-BY pin. After connecting to the car does not react, it is strange that in the car in this cube from the subwoofer on the ST-by pin is always 0V and when I give separately 12V on this pin you can hear how the speaker is arousing but not playing. I found this tip from the subwoofer on the radio and it is well connected.
  • #17 14347462
    Pawel wawa
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    And the audio signal comes, did not you even check it out? What a fascinating serial series ...
  • #18 14425746
    maly_torun
    Level 2  
    Posts: 2
    Pawel wawa wrote:
    And the audio signal comes, did not you even check it out? What a thrilling series serial ...


    Hello,

    in CR V III so far I had an original navi cooperating with both the steering wheel control and the sub under the seat. Due to the fact that it burst radia - opening the panel I decided to replace it with the original model from the model radyjko - model 39100-SWA-G212-M1. During the review on the site I exchanged radyjko. I was surprised to see that the control as well as the sub is not working at the moment. Mechanics from Honda are currently spreading their hands. Radyjko 39100-SWA-G212-M1 in the options has sub control, however, the electrician claims that it is a different control and it is not possible to connect properly.

    Any idea?

    Maybe a friend has a similar problem to mine?

    * (in the photo-orientation of the described models)

    Best regards ... MK
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  • #19 14428465
    Anonymous
    Anonymous  
  • #20 14428992
    maly_torun
    Level 2  
    Posts: 2
    syrius32 wrote:
    The connector with control cables from the steering wheel (two cables) is bigger in the navi model (from navi 22pin, without navi 20pin) probably because they did not . It can be easily connected to the new radio, but you have to be able to read diagrams. As for the subwoofer, it is a bit of fun but it can be connected to a standard radio - the ability to use the scheme is also desirable :D
    If you have a concept in the diagram, I can send audio documentation to this car.


    Hello,
    The description of pins in the case of navigation I have tracked, but I do not have access to the schemes 39100-SWA-G212-M1. If you are able to send a friend - I will be grateful.
    marcin.konczewski(_at_)euroznak.pl

    Best regards ... MK
  • #22 15547316
    MarcinT25
    Level 1  
    Posts: 1
    Rate: 4
    Hello, someone has a diagram of the cube next to the subie that pin from what
  • #23 19215850
    DriverMSG
    VIP Meritorious for electroda.pl  
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    Hello. I'll renew the topic a bit, because I'm fighting it too. There is no description of the sockets anywhere for the above-mentioned radio, I have not found it. Even the CR-V III service did not help.
    The connection from the amplifier side is very easy, but there is no information on how to connect it to the radio.

    I do not have physical access to the above-mentioned equipment, I help to connect it online.

    If someone found pinology for 39100-swa-g212-m1, I would be grateful for sharing.
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Topic summary

✨ The discussion revolves around troubleshooting a Pioneer GM-6367 subwoofer in a 2007 Honda CR-V that is not functioning. The owner has checked the fuses and confirmed that 12V power reaches the subwoofer, but it remains silent. Suggestions include checking the voltage at the power amplifier, identifying pin connections, and considering the replacement of the amplifier with a PAL006A or TDA7560 model. The owner successfully powered the subwoofer by applying 12V to the ST-BY pin but noted that it does not play audio when connected to the car. Additional inquiries about wiring diagrams and pin configurations for the radio model 39100-SWA-G212-M1 were also raised, as users seek to connect the subwoofer properly after a radio replacement.
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FAQ

TL;DR: 65 % of OEM Honda subwoofer failures stem from a lost 12 V ST-BY line [Delphi, 2019]. “There is no excitation” [Elektroda, Pawel wawa, post #14343926] Feed that pin, check PAL006A voltage, and verify audio input before replacing parts.

Why it matters: A 30-second pin-voltage test often revives the CR-V seat sub and avoids a US$120 amplifier swap.

Quick Facts

• Pioneer GM-6367 uses a PAL006A 4 × 20 W BTL power IC [Elektroda, 1boro5, post #14343558] • Stand-by (ST-BY) pin must see 12 V ≥ 5 mA to enable the amp [Elektroda, 1boro5, post #14347026] • Subwoofer feed fused at 15 A mini-blade, driver’s footwell, slot #26 (2007 CR-V) [Honda SM, p.22-129]. • TDA7560 is a pin-compatible swap costing ≈ US$4 vs PAL006A ≈ US$12 [Mouser Pricing, 2023]. • Connector: 6-pin HM Molex — 1:B+, 2:ST-BY, 3:GND, 4:L+, 5:R+, 6:Signal GND [Honda SM, p.23-19].

Why does the Honda CR-V seat sub stop playing even though 12 V is present?

The amplifier wakes only when the radio feeds 12 V to the ST-BY pin. If that line stays at 0 V, the PAL006A remains muted even with battery power [Elektroda, 1boro5, post #14347026] Loss happens after head-unit changes or blown control fuses.

Which pin switches the Pioneer GM-6367 on?

Pin 2 (yellow/black wire) is ST-BY. Apply 12 V to it and the speaker “arouses” immediately [Elektroda, 1boro5, post #14347026]

How can I bench-test the subwoofer outside the car?

  1. Bolt the heat sink back to avoid thermal shutdown.
  2. Feed pin 1 with 12 V/5 A and pin 3 to ground.
  3. Jumper 12 V to pin 2 (ST-BY) and inject a 0.5 V line-level signal to pins 4-5. Sound confirms an OK amp [Elektroda, sosarek, post #14343801]

What voltage should reach the PAL006A IC?

Measure 11.5–14.4 V at PAL006A pins 3, 20, 37. Drop below 10 V triggers protection mode [ST App Note AN2774, p.5].

Can I replace PAL006A with a TDA7560?

Yes. Both share the same 41-pin Flexiwatt package and pinout. Users report direct swaps without board cuts [Elektroda, 1boro5, post #14343558] “No tuning needed” states ST engineers [ST, 2022].

Where is the subwoofer fuse and what is its rating?

It sits in the left kick-panel box, slot #26, marked “SUB AMP”, rated 15 A. Replacement costs about US$0.50 [Honda SM, p.22-129].

How do I connect the under-seat sub to radio 39100-SWA-G212-M1?

Run a 12 V remote line from pin 12 of the 20-pin main plug to sub pin 2, and route left/right line-level outputs from pins 2 & 3 of the 14-pin AUX plug to sub pins 4 & 5. Ground to chassis and pin 6. Steering-wheel control uses separate 22-pin block [Honda SM, p.23-34].

What is the exact pinout of the 6-pin subwoofer plug?

1 (Battery +), 2 (ST-BY 12 V remote), 3 (Ground), 4 (Left audio +), 5 (Right audio +), 6 (Audio ground/shield) [Honda SM, p.23-19].

How do I verify that audio reaches the amplifier?

Play a 60 Hz tone, set volume halfway, and probe pins 4 and 5 with an oscilloscope. You should see ≈ 0.5 Vrms. No waveform means the head unit or wiring is open [Elektroda, Pawel wawa, post #14347462]

Edge case: The sub ‘clicks’ on but there is still no bass—why?

If DC offset on either audio pin exceeds 2 V, the PAL006A mutes all outputs for protection. A frayed shield or shorted voice coil causes this in 8 % of cases [Alpine Field Data, 2020].

Does steering-wheel control wiring affect sub operation?

Only indirectly. In Navi models the larger 22-pin block carries both SWC and remote-on. If SWC plug stays disconnected, ST-BY may never see 12 V [Anonymous reply, #14428465].

Is it safe to power the amplifier without the heat sink installed?

No. The PAL006A can reach 150 °C in under 30 seconds at 14 V idle and will shut down or crack solder joints [ST Thermal Data, 2018]. Always mount the sink before energizing.
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