9402 front sensor left - 2004 BMW 5 Series

Look at the transmission control module. Sounds like a massive wiring harness problem too.

Brent, Check and clean connections(use electronic contact cleaner), make sure wires are not damaged. Check grounds from EBCM controller. Check links below and don't be afraid to google search for more info.
C 0222 Missing Right Front Speed Signal
C 0226 Missing Left Front Speed Signal
- Faulty Right/Left Front Speed Sensor
- Right/ Left Front Speed Sensor harness is open or shorted
- Right/ Left Front Speed Sensor circuit poor electrical connection
- Faulty EBCM

C 0237 Erratic rear speed signal
- Faulty Rear Speed Sensor
- Rear Speed Sensor harness is open or shorted
- Rear Speed Sensor circuit poor electrical connection
- Faulty EBCM


How fixed Chevy with an Abs and Brake light on

https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&uact=8&ved=0ahUKEwi0i8zz5YzLAhWD74MKHffwDLQQtwIIITAC&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DR_5WZUebDx8&usg=AFQjCNHimqe_Fje8AySjD5N0Wh8z8dQuuw

How To Install Replace Front ABS Sensor and Harness 2000 06 Chevy Suburban...

1) Front End Sensor - Right--Located under the front hood in the engine compartment (2) I/P Air Bag--Located at the top right under the instrument panel (3) Roof Rail Air Bag - Right--Located under the headliner, extending from the passenger front windshield pillar to the passenger rear windshield pillar (4) Side Impact Sensor (SIS) - RF--Located under the right front door trim near the lower rear of the door frame (5) Sensing and Diagnostic Module (SDM)--Located underneath the vehicle carpet under the center console (6) Seat Belt Pretensioner - RF--Located under the trim near the bottom of the center pillar (7) Side Impact Sensor (SIS) - RR--Located under the right rear door trim near the lower rear of the door frame (8) Roof Rail Module - Right--Located behind the garnish molding on the upper rear pillar (9) Roof Rail Module - Left--Located behind garnish molding on the upper rear pillar (10) Side Impact Sensor (SIS) - LR--Located under the left rear door trim near the lower rear of the door frame (11) Seat Belt Pretensioner - LF--Located under the trim near the bottom of the center pillar (12) Side Impact Sensor (SIS) - LF--Located under the left front door trim near the lower rear of the door frame (13) Roof Rail Air Bag - Left--Located under the headliner, extending from the driver front windshield pillar to the driver rear windshield pillar (14) Steering Wheel Air Bag--Located on the steering wheel (15) Vehicle Battery--Located at the front left of the engine compartment. (16) Front End Sensor - Left--Located under the front hood in the engine compartment

sounds like it looses wheel sensor signal from the front left wheel, thinking its slipping. either a defective wheel sensor or loose connection somewhere on/in the wires between wheel sensor and control unit

I think you pulled the code incorrectly, or are reading it wrong. To get code:
1. Jump pins 4 & 9 on OD2 connector.
2. Turn key 2 clicks.
3. ABS light should blink to give you code. (long blinks for first digit, short ones for second. Example: One long blink and three short blinks would be 13).
Honda ABS trouble codes list :
11= Right front wheel sensor (open/short to body ground/short to power)
12= Faulty right front wheel sensor pulse signal
13= Left front wheel sensor (open/short to body ground/short to power)
14= Faulty left front wheel sensor pulse signal
15= Right rear wheel sensor (open/short to body ground/short to power)
16= Faulty right rear wheel sensor pulse signal
17= Left rear wheel sensor (open/short to body ground/short to power)
18= Faulty left rear wheel sensor pulse signal
21= Continous Operation (chipped pulser)
31-38 are all the same: "solenoid"
51= Motor lock
52= Motor stuck off
53= Motor stuck on
54= Main realy stuck off
61= Ignition voltage
81= CPU (central processing unit)

{: ) There are many components in the airbag system of a vehicle and each one plays a distinct function in order to ensure a reliable protection, and timely deployments of the airbag in cases of extreme collisions.
You may be referring to the front and side impact sensors. These sensors are always on the front lines, meaning they usually are the first, the closest, and receives the most impact in collision situations.
The front impact sensors (left and right) are located on the front frame crossmember.
The right side impact sensor is located under the right front door trim near the lower rear of the door frame. The left side impact sensor is located under the left front door trim near the lower rear of the door frame.

ABS Fault Code List 1991 Corvette (C4)
Code Definition
21 Right Front Wheel Speed Sensor Fault
22 Right Front Toothed Wheel Frequency Error
25 Left Front Wheel Speed Sensor Fault
26 Left Front Toothed Wheel Frequency Error
31 Right Rear Wheel Speed Sensor Fault
32 Right Rear Toothed Wheel Frequency Error
35 Left Rear Wheel Speed Sensor Fault
36 Left Rear Toothed Wheel Frequency Error
41 Right Front Solenoid Valve Fault
45 Left Front Solenoid Valve Fault
55 Rear Wheels Solenoid Valve Fault
61 Pump Motor or Motor Relay Fault
63 Solenoid Valve Relay Fault
71 Electronic Brake Control Module Fault
72 Serial Data Line Fault
75 Lateral Accelerometer Fault (Short ot Open)
76 Lateral Accelerometer Fault (Signal out of Range)

When your BMW is version from USA How localized the sensor F.L. is into my picture.

You didn't list your engine size so please pick the applicable to your motor size:

Removal & Installation 2.8L & 2.9L Engines To Remove:

1. Lift the vehicle high enough to gain access to the knock sensor (KS) through the left front wheelhouse.
2. Remove the left front wheel and wheelhouse liner.

Knock sensor (KS) (A), Engine harness (B), Knock sensor (KS) connector (C)

1. Disconnect the knock sensor (KS) connector.
2. Detach the knock sensor (KS) from the engine block.

To Install:

1. Attach the knock sensor (KS) to the engine block.
   • Tighten the bolt to 18 ft lbs (25 Nm).
2. Connect the knock sensor (KS) connector.
3. Install the left front wheelhouse liner and wheel.
4. Fully lower the vehicle.

Sounds like you need front wheel speed sensors. Replace the wheel bearings and sensors. May have an ABS unit fault, but more likely is both wheel bearings/speed sensors.