B37 (Accelerator Pedal Sensor) : Signal 1 / Short Circuit to Positive / Potentiometer Above Maximum Value
B37 (Accelerator Pedal Sensor) : Signal 1 / Short Circuit to Positive / Potentiometer Above Maximum Value (P0120)
Check Component B37 (Accelerator Pedal Sensor).
Test 1 Check Component B37 (Accelerator Pedal Sensor) Using Actual Value.
Test 2 Test Voltage Supply of Component B37 (Accelerator Pedal Sensor).
1 Check Component B37 (Accelerator Pedal Sensor) Using Actual Value.
Test sequence
- Switch on ignition.
Status of the relevant actual values:
- B37 (Accelerator pedal sensor) Signal 1: Note! Communication with ECU required
- B37 (Accelerator pedal sensor) Signal 2: Note! Communication with ECU required
Specified values
- B37 (Accelerator pedal sensor)Signal 1(Accelerator pedal position: Idle speed): [0.2...0.5] V
- B37 (Accelerator pedal sensor)Signal 2(Accelerator pedal position: Idle speed): [0.1...0.5] V
- B37 (Accelerator pedal sensor)Signal 1(Accelerator pedal position: Kickdown): [4.3...4.8] V
- B37 (Accelerator pedal sensor)Signal 2(Accelerator pedal position: Kickdown): [2.1...2.5] V
Question
- Are the actual values o.k.?
Yes
The actual values are okay. ** End of Test **
No
The actual values are not okay.
Possible cause and remedy
- Test voltage supply of component B37 (Accelerator pedal sensor).
- Inspect cables from component N3/10 (ME-SFI control module) to component B37 (Accelerator pedal sensor).
- B37 (Accelerator pedal sensor)
** End of Test **
2 Test Voltage Supply of Component B37 (Accelerator Pedal Sensor).
Test requirement
- The actual value is not o.k.
Test sequence
- Switch off ignition.
- Connect socket box (126-pin) to component N3/10 (ME-SFI control module).
- (4.6) 91 <--> 104 (4.19)
- Switch on ignition.
Specified value
- Voltage[4.75...5.25] V
Question
- Is the measured value okay?
Yes
The measured value is o.k.
Further possible causes of fault
- Signal wire
- B37 (Accelerator pedal sensor)
No
The measured value is not o.k.
Possible cause and remedy
- Cable between component N3/10 (ME-SFI control module) and component B37 (Accelerator pedal sensor)
** End of Test **