ABS, ((!)) Break Lights, Battery Doesn't Regen When Braking

2015 Toyota Prius. Insurance paid me out and let me keep the car. It has a rear passenger quarter panel damage as well as damage to the suspension. It only has 8000 miles as of now.

The quarter panel and the rear suspension was completely swapped off a 2012 Prius with 160k miles.

My brother currently drives the car and I haven't drove it since it was repaired till recently.

ABS, BRAKE, ((!)), and the yellow Swerving Light is on.


When braking, the car doesn't charge and regenerate the battery.

Self Diagnostics:

1. Pin 4 and 13 Short Circuit (Tried x 2) = Didn't Go Away
2. OBD2 Scanner = No Fault Codes
3. Unplugging the 12V didn't help.

Questions:

1. Wheel Bearing (ABS) Bad?
2. How much would a replacement cost?
3. OEM or Aftermarket?
4. How much would labor cost me?
5. Anything else I should check before taking it to a mechanic?
6. What would a mechanic do to determine the issue?

Thanks in advance.

 

Thanks for the reply. I finally got around to looking into this issue again and tried what you told me. When I start the car, the only light that blinks is the low tire pressure light with an exclamation point . It blinks around 64 times (seemed like too much to count for an error code) before coming back on steady. I snooped around some forums and found a handy procedure that takes me into the service menu. From there, I was able to read out 2 error codes. The codes were:

• B1585
• U0129

After taking a picture of the codes, I pressed and held the Code CLR button to clear the codes.

I managed to get the trouble codes from withing the car's MFD which are:

• B1585
• U0129

 

Sure! Do you recognize these codes? Google search doesn't show many results when I look them up.

 

Hey guys, quick update here. Recently, when I was driving the car on the freeway, there was a ramp with a sharp turn and all of a sudden, the car started beeping/buzzing (same sound when you don't put on your seatbelt). This stayed on for approximately 20 minutes and was on when I parked at home. Eventually, the sound went away and came back again when I drove over a speed bump. Currently, the sound is off because it went away again.

More pieces for the puzzle: I recently got a hold of a scanner and was able to extract real codes:

ABS/VSC/TRAC:

C1202 Master Reservoir Level Malfunction
C1241 Low or High Power Supply Voltage
C1252 Brake Booster Pump Motor on Time Abnormally Long
C1256 Accumulator Low Pressure Freeze Frame Data
C1467 Rear Speed Sensor LH Circuit

Some data:

Spoiler

Sample Time MM:SS.mmm
TROUBLE CODE C1252
Detailed Freeze DTC 311
Elapsed Time after Freeze Trigger 0 msec
Number of IG ON 31
Elapsed Time 176 sec
Buzzer ON
Stop Light SW ON
Parking Brake SW OFF
Reservoir Warning SW ON
Shift Lever Position D/M
Operated System Non
Stroke Sensor 1.03 V
Stroke Sensor2 3.94 V
Accumulator Sensor 0.49 V
Yaw Rate Sensor 0 °/s
Lateral G -0.78 m/s2
Forward and Rearward G -0.58 m/s2
FR Wheel Speed 0 km/h
FL Wheel Speed 0 km/h
RR Wheel Speed 0 km/h
RL Wheel Speed 0 km/h
Vehicle Speed 0 km/h
Accelerator Opening Angle % 0.0 %
ECB Motor Relay OFF
ECB Main Relay ON
IG1 Voltage Value 13.88 V
IG2 Voltage Value 13.88 V
BS1 Voltage Value 13.96 V
VM1 Voltage Value 13.09 V
Motor Relay Voltage Value 12.00 V
Steering Angle Sensor 88.5 °
Regulator Pressure Sensor Output 0.49 V
Regulator Pressure Sensor Output Variant 0 MPa/s
Wheel Cylinder Pressure Sensor 0.49 V
SLA Solenoid Current 0.00 A
SLR Solenoid Current 0.00 A
Target Oil Pressure 0.00 Mpa
ECB Solenoid (SSC) OFF
ECB Solenoid (SCC) OFF
ECB Solenoid (SMC) OFF
ECB Solenoid (SRC) OFF
Voltage of Stroke Sensor -0.03 V
Voltage of Stroke Sensor2 -0.03 V
Sample Time MM:SS.mmm
TROUBLE CODE C1256
Detailed Freeze DTC 341
Elapsed Time after Freeze Trigger 0 0 120 msec
Number of IG ON 31 31 31
Elapsed Time 132 sec
Buzzer OFF OFF ON
Stop Light SW OFF OFF OFF
Parking Brake SW ON ON ON
Reservoir Warning SW ON ON ON
Shift Lever Position P
Operated System Non Non Non
Stroke Sensor 0.94 0.94 0.94 V
Stroke Sensor2 4.03 V
Accumulator Sensor 0.52 V
Yaw Rate Sensor 0 0 0 °/s
Lateral G -0.78 -0.78 -0.78 m/s2
Forward and Rearward G -0.78 -0.78 -0.78 m/s2
FR Wheel Speed 0 0 0 km/h
FL Wheel Speed 0 0 0 km/h
RR Wheel Speed 0 0 0 km/h
RL Wheel Speed 0 0 0 km/h
Vehicle Speed 0 0 0 km/h
Accelerator Opening Angle % 67.0 89.0 91.5 %
ECB Motor Relay ON
ECB Main Relay ON
IG1 Voltage Value 13.96 V
IG2 Voltage Value 13.96 V
BS1 Voltage Value 14.03 V
VM1 Voltage Value 13.17 V
Motor Relay Voltage Value 12.00 V
Steering Angle Sensor 21.0 21.0 21.0 °
Regulator Pressure Sensor Output 0.49 0.49 0.49 V
Regulator Pressure Sensor Output Variant 0 0 0 MPa/s
Wheel Cylinder Pressure Sensor 0.49 V
SLA Solenoid Current 0.00 A
SLR Solenoid Current 0.00 A
Target Oil Pressure 0.00 Mpa
ECB Solenoid (SSC) OFF
ECB Solenoid (SCC) OFF
ECB Solenoid (SMC) OFF
ECB Solenoid (SRC) OFF
Voltage of Stroke Sensor -0.03 V
Voltage of Stroke Sensor2 -0.03 V

Tire Pressure Monitor:
C2121 Cannot Receive a Data from the Transmitter ID1 (Main)
C2177 Initialization Un-Completing

 

First of all, thank you for taking your time to reply and help diagnose the car issues. I really appreciate it and this is why I'm here on the forums trying to get to resolve this as soon as I can.

Thank you for the tip. Any specific things in the brake system that I should be looking out for?

Thank you for your advice. If the car is dangerous to drive, I will not drive it.

Actually, I did not use a generic OBDII scanner to get those codes. On a Prius, my experience with generic OBD scanners yielded no error codes whatsoever. I did use a mini VCI cable along with Techstream to pull out the information that I posted earlier.

I scanned all the ECU's for codes:

These are the only ones that showed error codes:



Active codes:

Tire Pressure Monitor:

1. C2121 Cannot Receive a Data from the Transmitter ID1 (Main)
2. C2177 Initialization Un-Completing

ABS/VSC/TRAC:

1. C1202 Master Reservoir Level Malfunction
2. C1241 Low or High Power Supply Voltage
3. C1252 Brake Booster Pump Motor on Time Abnormally Long
4. C1256 Accumulator Low Pressure Freeze Frame Data
5. C1467 Rear Speed Sensor LH Circuit

​

All other codes are marked as history. I will try to find some technical documentation, could you link me to some samples/where I can find them?

Who knows, it could be a problem that may have cascaded from the infamous 12V battery fails, but I do not recall having issues with my battery. Checked the voltages and seemed to be fine, but I might have to take a closer look now that I have the ability to use Techstream.

 

Hey guys, just a quick update, and hopefully my last one. I started off at the very beginning with your suggestions. I went under my hood to check all my levels and realized I needed to add more breaking fluid. I am still baffled how I could have missed this minor detail, but all the dashboards lights have disappeared and I am happy to announce that my system returned to normal. My regenerative breaking now works properly and the low tire pressure light is a separate issue that I am now investigating. Thank you for the suggestions, I really appreciate every single one of you that contributed!