DTC P0817 Starter Disable Circuit

WARNING: This page is about a different variant/trim than selected.

DTC DETECTING CONDITION:

Open or short in P/N signal output circuit

TROUBLE SYMPTOM:

Engine can be started on other than "P" or "N" range
Engine can not be started on "P" or "N" range.

WIRING DIAGRAM:

Fig 1: Starter Disable - Wiring Diagram

G05019838

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK DTC OF TCM.	Is DTC of Transmission Range Sensor Circuit (PRNDL Input) detected?	Perform the diagnosis according to DTC.	Go to step 2.
2 CHECK ECM.	Is the communication between Subaru Select Monitor and ECM normal?	Go to step 3.	Perform the diagnosis according to DTC concerning ECM.
3 CHECK FUSE (NO. 32). Turn the ignition switch to OFF. Remove the fuse.	Is the fuse (No. 32) blown out?	Replace the fuse (No. 32). If the new fuse (No. 32) has blown out easily, repair the short circuit of harness between fuse (No. 32) and TCM.	Go to step 4.
4 CHECK HARNESS CONNECTOR BETWEEN TCM AND ECM. Turn the ignition switch to OFF. Disconnect the connector from TCM and transmission. Measure the resistance of harness between TCM connector and transmission connector. Connector & terminal Turbo model: (B55) No. 19 - (B137) No. 9: Non-turbo model: (B55) No. 19 - (B136) No. 31:	Is the resistance less than 1 Ω?	Go to step 5.	Repair the open circuit of harness between TCM and transmission connector, or poor contact of connector.
5 CHECK HARNESS CONNECTOR BETWEEN TCM AND ECM. Measure the resistance of harness between TCM connector and chassis ground. Connector & terminal (B55) No. 19 - Chassis ground:	Is the resistance more than 1 MΩ	Go to step 6.	Repair the short circuit of harness between transmission connector and chassis ground.
6 CHECK TCM OUTPUT SIGNAL. Connect the TCM and ECM connector. Turn the ignition switch to ON. (engine OFF) Shift the select lever to "P" range. Measure the voltage between TCM connector and chassis ground. Connector & terminal (B55) No. 19 (+) - Chassis ground (-):	Is the voltage less than 1 V?	Go to step 7.	Replace the TCM. < Ref. to TRANSMISSION CONTROL MODULE (TCM) . >
7 CHECK TCM OUTPUT SIGNAL. Shift the select lever to "D" range. Measure the voltage between TCM connector and chassis ground. Connector & terminal (B55) No. 19 (+) - Chassis ground (-):	Is the voltage more than 10 V?	Go to step 8.	Replace the TCM. < Ref. to TRANSMISSION CONTROL MODULE (TCM) . >
8 CHECK POOR CONTACT.	Is there any open or poor contact of connector (loosing terminal, entering foreign matter, damaging connector body)?	Repair the poor contact.	Check the neutral switch of ECM.