DTC B1607 SUNLOAD Sensor Short: Wiring Diagram

Air Conditioning System. See appropriate SYSTEM WIRING DIAGRAM article.

Fig 1: Sunload Sensor - Wiring Diagram

G07915745

Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK CONNECTOR. Check the condition of connector connection. Read the DTC using Subaru Select Monitor.	Is B1607 displayed?	Go to step 2 .	Check the connection of the sunload sensor circuit.
2 CHECK SUNLOAD SENSOR. Disconnect the sunload sensor. Read the DTC of the A/C ECM using the Subaru Select Monitor.	Is B1608 displayed?	Replace the sunload sensor. Refer to REMOVAL .	Go to step 3 .
3 CHECK HARNESS. Turn the ignition switch to ON. Using the tester, measure the voltage between terminals. Connector & terminal (i194) No. 3 (+) - No. 1 (-):	Is the voltage 10 V or more?	Check the connection of the sunload sensor circuit.	Go to step 4 .
4 CHECK HARNESS. Disconnect the connector from A/C CM. Using a tester, check continuity between terminals. Connector & terminal (i194) No. 3 - 1:	Is there continuity?	Repair or replace the short circuit of the harness.	Replace the A/C CM. Refer to REMOVAL .