P1820

P1820 Engine Speed Signal

Description
The ECM transmits the engine speed signal via CAN communication to the transfer control unit. DTC P1820 will set when either of the following occur:
^ Malfunction is detected in engine speed signal that is output from the ECM.
^ Improper signal is input while driving.

DTC Logic

DTC DETECTION LOGIC





DTC CONFIRMATION PROCEDURE

Step 1:

Diagnosis Procedure

Steps 1-3: