P1857

Factory Manual References

Factory service manual diagnostic procedure for 2002 audi a4

01J, Constantly Variable Transmission (Cvt)



Factory service manual diagram




P1857 Load signal; Error message from Engine Control Module (ECM)

Notes on DTC 18265/P1857:
^ The signal for actual engine torque is transmitted from the Engine Control Module (ECM) over the CAN bus lead to the Transmission Control Module (TCM).
^ Conditions for DTC recognition: The malfunction in the component in question is diagnosed by the Engine Control Module (ECM). This diagnosis is transmitted over the CAN bus circuit to the Transmission Control Module (TCM).

01V, 5 Speed A/T

DTC P1857:

Factory service manual diagram


01J, Constantly Variable Transmission (Cvt)



Factory service manual diagram




P1857 Load signal; Error message from Engine Control Module (ECM)

Notes on DTC 18265/P1857:
^ The signal for actual engine torque is transmitted from the Engine Control Module (ECM) over the CAN bus lead to the Transmission Control Module (TCM).
^ Conditions for DTC recognition: The malfunction in the component in question is diagnosed by the Engine Control Module (ECM). This diagnosis is transmitted over the CAN bus circuit to the Transmission Control Module (TCM).

Supporting Diagrams & Locations

Reference material from the factory manual for this diagnostic procedure.

Diagram

1.8L

Diagram

3.0L

Diagram

1.8L

Diagram

3.0L

Diagram

1.8L

Diagram

3.0L

Location

1.8L (Engine Code: AMB)

Location

2.0L (Engine Codes: BGP, BWT)

Location

2.7L (2002 S4 - Engine Code: APB)

Location

3.0L (Engine Codes: AVK, BGN)