peterx

Hi Everyone,

The Backstory
I left a bluetooth to radio gizmo in the cigarette lighter socket of my ~60,000 KM 2010 Accord Crosstour and that drained the car battery in a week while I was on vacation. When I came back, I replaced the battery and then the problem appeared.

The Problems

1. Check engine light on
2. ABS light on
3. D4 light blinking
4. Speedometer going to zero intermittently / not working
5. Cannot accelerate - RPM goes up but speed stuck at 10-20 kph, seems to be stuck in first gear?

I had a OBDII scanner and used it to get these codes as Current Fault

• P0107 - Manifold Absolute Pressure/Barometric Pressure Circuit Low Input
• P2138 - Accelerator Pedal Position Sensor A/B Incorrect Voltage Correlation
• P0452 - Evaporative Emission Control System Pressure Sensor Low Input
• P0651 - Sensor Reference Voltage 'B' Circuit Malfunction
• P0722 - Output Speed Sensor No Signal

On top of those red Current Faults, I also got these Pending Faults

• P2422 - Evaporative Emission System Vent Valve Stuck Closed
• C1555

They seem to be all powertrain sensor or circuit related which makes sense as the problem seems to have been caused by the gizmo draining the battery. I have found a few sources mentioning issues with either the PCU/PCM or the ECU/ECM on the internet. Has anyone experienced similar issues and if so what was the fix?

Kind Regards,
Peter

peterx

Update: this may be a Engine Control Module issue, as if I unplug the power (battery) and reset the computer, the problem is fixed temporarily. The same issues comes back in a few days (couple of hundred KMs).