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Help '12 G37xs check engine light, abs, traction light, no blower motor after radio

Old 03-17-2019, 01:31 AM
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ARogers502
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'12 G37xs check engine light, abs, traction light, no blower motor after radio

I've been doing live updates during the install of my Phoenix Android Radio in the "Tesla Style Screen" thread. I've reached a point where I need help. This separate thread might help me reach a solution faster since it's not the Phoenix radio causing the problems I'm having now. Sorry if that's a problem posting the same info in two places. I just wanted the extra visibility to readers.

2012 G37xs Sedan, with nav, with bose, with backup cam. I was installing the Phoenix Android radio and hooked up the plugs to the " ACAmp (plastic box)" wrong. It created lots of weird symptoms (no engine start, backup lights on constantly, can't turn off power to the car without disconnecting the battery etc...) Well once I figured out what I had done wrong and corrected it, I developed a new set of problems. I decided to go back to factory until I can get in touch with Phoenix for help but the problem may not be on their end after all. The issues persisted even after factory radio install.

1. My check engine light is on (can't pull codes using Torque app and Elm bluetooth code reader)
2. ABS light is on
3, Traction light is on
4 Blower motor doesn't work
5. No paddle/slap shift
6. No turn signals
7. No factory backup camera
8. Air bag light blinking
9. Disk changer seems to making some kind of cycling off/on noise every 2 minutes or so

Any ideas where to look? I've checked fuses twice now (fluke meter and manually pulling to look). I checked the fuse box behind the driver kicker panel and the one under the battery cover.

Last edited by ARogers502; 03-17-2019 at 10:53 AM.
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Old 03-17-2019, 10:52 AM
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Update: Got the codes checked and there are a lot. I've got a problem.

Transmission:
p1815 Manual mode switch circuit

ABS:
c1109 battery voltage out of range
U1000 CAN communication circuit

BCM:
U1000 CAN communication circuit
U0415 Vehicle Speed Signal
B2193 Chain of BCM - ECM
B2553 Ignition relay
B2557 Vehicle speed
B2562 Low voltage
B2601 Shift position
B2604 PNP Switch
B2605 PNP Switch
B260A Igntion relay
B260F Engine State Signal Lost
B2617 Starter Relay Circuit
B261A Push Button Igntion Switch
C1729 Vehicle Speed Signal Error

Multi Audio Visual (AV)
U1217 Bluetooth Module
U1229 iPod Certification Error

TPMS:
U1000 CAN Communication Circuit
U0415 Vehicle Speed Signal
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Old 03-20-2019, 03:04 AM
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Phoenix Android radios finally got back to me on Instagram. They said it should be a fuse and that I should check the Facebook group.

I've already been over every fuse under the hood and in the driver side kick panel with a fluke meter. Not sure what more I could do.
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Old 03-20-2019, 06:42 PM
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no way to clear all those codes and see if they pop up again?
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Old 03-20-2019, 06:52 PM
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Originally Posted by teahead View Post
no way to clear all those codes and see if they pop up again?
All of these codes return.
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Old 03-20-2019, 07:22 PM
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This is a stab in the dark, but have you tried reinstalling your factory system and, if so, what are the status of the codes?

I briefly checked the FSM and many of those codes/symptoms/systems have one thing in common: the wiring is, in some way, connected to the AC Amp. Additionally, some of those systems reference fuse #3 and fuse #7 and also the fusible links at the battery positive cable.

Code U1000, the CANBUS com circuit, is almost always a result of a bad ground somewhere.

I wish I could be of more help. At this point I would say to hell with the Phoenix unit- could be a bad unit or a incorrectly pinned harness...

Last edited by ILM-NC G37S; 03-20-2019 at 07:28 PM.
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Old 03-20-2019, 07:29 PM
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Originally Posted by ILM-NC G37S View Post
This is a stab in the dark, but have you tried reinstalling your factory system and, if so, what are the status of the codes?

I briefly checked the FSM and many of those codes/symptoms/systems have one thing in common: the wiring is, in some way, connected to the AC Amp. Additionally, some of those systems reference fuse #3 and fuse #7 and also the fusible links at the battery positive cable.

Code U1000, the CANBUS com circuit, is almost always a result of a bad ground somewhere.

I wish I could be of more help. At this point I would say to hell with the Phoenix unit- could be a bad unit or wrong harness...
I reinstalled everything to factory the minute I finished trying to troubleshoot the Phoenix radio connections. I'm getting these codes even when back to factory and resetting them doesn't work.

I tried replacing the AC Amp/Unified meter with a known good one from my friends car (same car except without navigation and bose but an Infiniti Master Tech tells me that shouldn't matter). That didn't help me.

I haven't noticed or looked at the fusible links at the battery cable. I will verify those after work tonight now that I know to look there for them.

I'm hesitant to hold Phoenix responsible or give up on the product because at the end of the day, I created this issue by plugging the wrong plug up to the AC Amp box. Better instructions with the radio probably would have prevented this but I take responsibility for my part.
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Old Yesterday, 01:42 AM
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Originally Posted by ILM-NC G37S View Post
Additionally, some of those systems reference fuse #3 and fuse #7 and also the fusible links at the battery positive cable..
I checked the fuses on the battery positive cable and they're not blown either. Dang. I was hopeful. I guess I'll be dropping this one with the dealer Friday or so.

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Old Yesterday, 09:54 AM
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If/when you have the timex before taking it to the dealer, try checking ALL of the wires at the AC amp with your fluke meter. Just about every code you have is linked in some way to that damn thing. I know you said you switched with a known, working amp and there was no change, but there is something off in that area- I'm guessing a bad ground.

2012 G37 Sedan FSM

Section MWI (Meter Warning Indicator) will have the spinouts for the AC Amp (wouldn't hurt to download the whole FSM while you can).
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Old Today, 02:39 AM
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Originally Posted by ILM-NC G37S View Post
If/when you have the timex before taking it to the dealer, try checking ALL of the wires at the AC amp with your fluke meter. Just about every code you have is linked in some way to that damn thing. I know you said you switched with a known, working amp and there was no change, but there is something off in that area- I'm guessing a bad ground.

2012 G37 Sedan FSM

Section MWI (Meter Warning Indicator) will have the spinouts for the AC Amp (wouldn't hurt to download the whole FSM while you can).
WHOA! Thank you for this. I'm going to print this out at work and do exactly that tomorrow night!
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