P1807

P1807 Vehicle Speed Sensor (A/T)

Description

The transmission control module (TCM) transmits the output shaft revolution signal via CAN communication to Transfer control unit. DTC P1807 will set when a malfunction is detected in the output shaft revolution signal or an improper signal is input while driving.

DTC Logic

DTC Detection Logic






DTC Confirmation Procedure

1. DTC CONFIRMATION PROCEDURE

1 Turn ignition switch ON.
2 Perform "DTC check".

Is DTC P1807 detected?
YES
Perform diagnosis procedure. Refer to "Diagnosis Procedure".
NO
Inspection End.

Diagnosis Procedure

1. CHECK DTC WITH TCM

Perform "DTC check" with TCM. Refer to [SDT Function (4WD)] .

Is any malfunction detected by "DTC check"?
YES
Check the malfunctioning system.
NO
GO TO 2.

2. CHECK TRANSFER CONTROL UNIT

Check transfer control unit input/output signal. Refer to [Transfer Control Unit: Reference Value] .

Are the inspection results normal?
YES
GO TO 3.
NO
Check transfer control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.

3. CHECK DTC

Drive vehicle and then perform "DTC check".

Is DTC P1807 displayed?
YES
Perform "DTC check" with TCM again.
NO
Inspection End.