Check Manual Mode Switch: Wiring Diagram

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

AT Control System < Refer to appropriate SYSTEM WIRING DIAGRAM.>

Fig 1: AT Control System - Wiring Diagram (Manual Mode Switch)

Courtesy of SUBARU OF AMERICA, INC.

Step	Check	Yes	No
1 CHECK SHIFT INDICATOR. Turn the ignition switch to ON. Shift the select lever to manual mode. Set the select lever to + side. Read the shift indicator display in combination meter.	Is the gear position displayed?	Go to step 2 .	Go to step 3 .
2 CHECK SHIFT INDICATOR. Read the shift indicator display in combination meter.	Is "2" displayed?	Go to step 17 .	Go to step 9 .
3 CHECK BODY INTEGRATED UNIT.	Is DTC of CAN communication displayed?	Perform the diagnosis according to DTC.	Go to step 4 .
4 CHECK TCM. Read the data of «Tiptronic Mode Switch» using the Subaru Select Monitor.	Is "ON" displayed?	Go to step 9 .	Go to step 5 .
5 CHECK HARNESS CONNECTOR BETWEEN TCM AND SPORT/MANUAL MODE SWITCH. Turn the ignition switch to OFF. Disconnect the connectors from TCM and sport/manual mode switch. Measure the resistance of harness between TCM connector and sport/manual mode switch connector. Connector & terminal (B54) No. 17 - (B117) No. 7:	Is the resistance less than 1 Ω?	Go to step 6 .	Repair the open circuit of harness between TCM and sport/manual mode switch.
6 CHECK SPORT/MANUAL MODE SWITCH. Measure the resistance between sport/manual mode switch terminals. Connector & terminal (B117) No. 7 - No. 8:	Is the resistance less than 1 Ω?	Go to step 7 .	Replace the guide plate assembly.
7 CHECK HARNESS CONNECTOR BETWEEN SPORT/MANUAL MODE SWITCH AND CHASSIS GROUND. Measure the resistance of harness between sport/manual mode switch and chassis ground. Connector & terminal (B117) No. 8 - Chassis ground:	Is the resistance less than 1 Ω?	Go to step 8 .	Repair the open circuit of the harness between the sport/manual mode switch and chassis ground.
8 CHECK FOR POOR CONTACT. Check poor contact of sport/manual mode switch circuit.	Is there poor contact of the sport/manual mode switch circuit?	Repair the poor contact.	Replace the TCM. < Refer to TRANSMISSION CONTROL MODULE (TCM) . >
9 CHECK TCM. Shift and hold the select lever to + side. Read the data of «Up Switch» using the Subaru Select Monitor.	Is "ON" displayed?	Go to step 14 .	Go to step 10 .
10 CHECK HARNESS CONNECTOR BETWEEN TCM AND + SWITCH. Turn the ignition switch to OFF. Disconnect the connector from TCM and + switch. Measure the resistance of harness between TCM and + switch. Connector & terminal (B54) No. 19 - (B117) No. 5:	Is the resistance less than 1 Ω?	Go to step 11 .	Repair the open circuit of harness between TCM and + switch.
11 CHECK + SWITCH. Shift and hold the select lever to + side. Measure the resistance between + switch terminals. Connector & terminal (B117) No. 5 - No. 6:	Is the resistance less than 1 Ω?	Go to step 12 .	Replace the guide plate assembly.
12 CHECK HARNESS CONNECTOR BETWEEN + SWITCH AND CHASSIS GROUND. Measure the resistance of harness between + switch and chassis ground. Connector & terminal (B117) No. 6 - Chassis ground:	Is the resistance less than 1 Ω?	Go to step 13 .	Repair the open circuit of harness between + switch and chassis ground.
13 CHECK FOR POOR CONTACT. Check poor contact of + switch circuit.	Is there poor contact of + switch circuit?	Repair the poor contact.	Replace the TCM. < Refer to TRANSMISSION CONTROL MODULE (TCM) . >
14 CHECK TCM. Set the select lever to the center position. (Tilt the select lever to manual mode, and release the hold.) Read the data of «Up Switch» using the Subaru Select Monitor.	Is "OFF" displayed?	Perform the self-diagnosis of combination meter.	Go to step 15 .
15 CHECK HARNESS CONNECTOR BETWEEN TCM AND + SWITCH. Turn the ignition switch to OFF. Disconnect the connector from TCM and + switch. Measure the resistance of harness between TCM and + switch. Connector & terminal (B54) No. 19 - Chassis ground:	Is the resistance 1 MΩ or more?	Go to step 16 .	Repair the short circuit of harness between TCM and + switch.
16 CHECK + SWITCH. Measure the resistance between + switch terminals. Connector & terminal (B117) No. 5 - No. 6:	Is the resistance 1 MΩ or more?	Replace the TCM. < Refer to TRANSMISSION CONTROL MODULE (TCM) . >	Replace the guide plate assembly.
17 CHECK SHIFT INDICATOR. Set the select lever to - side. Read the shift indicator display in combination meter.	Is "1" displayed?	Normal. Finish the diagnosis.	Go to step 18 .
18 CHECK TCM. Shift and hold the select lever to - side. Read the data of «Down Switch» using the Subaru Select Monitor.	Is "ON" displayed?	Go to step 23 .	Go to step 19 .
19 CHECK HARNESS CONNECTOR BETWEEN TCM AND - SWITCH. Turn the ignition switch to OFF. Disconnect the connector from TCM and - switch. Measure the resistance of harness between TCM and - switch. Connector & terminal (B54) No. 18 - (B117) No. 9:	Is the resistance less than 1 Ω?	Go to step 20 .	Repair the open circuit of harness between TCM and - switch.
20 CHECK - SWITCH. Shift and hold the select lever to - side. Measure the resistance between - switch terminals. Connector & terminal (B117) No. 9 - No. 10:	Is the resistance less than 1 Ω?	Go to step 21 .	Replace the guide plate assembly.
21 CHECK HARNESS CONNECTOR BETWEEN - SWITCH AND CHASSIS GROUND. Measure the resistance of harness between - switch and chassis ground. Connector & terminal (B117) No. 10 - Chassis ground:	Is the resistance less than 1 Ω?	Go to step 22 .	Repair the open circuit of harness between - switch and chassis ground.
22 CHECK FOR POOR CONTACT. Check poor contact of - switch circuit.	Is there poor contact of - switch circuit?	Repair the poor contact.	Replace the TCM. < Refer to TRANSMISSION CONTROL MODULE (TCM) . >
23 CHECK TCM. Set the select lever to the center position. (Tilt the select lever to manual mode, and release the hold.) Read the data of «Down Switch» using the Subaru Select Monitor.	Is "OFF" displayed?	Perform the self-diagnosis of combination meter.	Go to step 24 .
24 CHECK HARNESS CONNECTOR BETWEEN TCM AND - SWITCH. Turn the ignition switch to OFF. Disconnect the connector from TCM and - switch. Measure the resistance of harness between TCM and - switch. Connector & terminal (B54) No. 18 - Chassis ground:	Is the resistance 1 MΩ or more?	Go to step 25 .	Repair the short circuit of harness between TCM and - switch.
25 CHECK - SWITCH. Measure the resistance between - switch terminals. Connector & terminal (B117) No. 9 - No. 10:	Is the resistance 1 MΩ or more?	Replace the TCM. < Refer to TRANSMISSION CONTROL MODULE (TCM) . >	Replace the guide plate assembly.