Daytime Running Light Module Check

WARNING: This page is about a different car, the 2011 Subaru Tribeca. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC PROCEDURE CHART

Step	Check	Yes	No
1 CHECK POWER SUPPLY CIRCUIT. Turn the ignition switch to ON. Measure the voltage between the daytime running light module terminal and chassis ground. Connector & terminal (B96) No. 2 (+) - Chassis ground (-): (B242) No. 6 (+) - Chassis ground (-):	Is the voltage battery voltage?	Go to step 2.	Check the fuse and the power supply circuit.
2 CHECK GROUND CIRCUIT. Disconnect the daytime running light module connector. Measure the resistance between the daytime running light module connector and chassis ground. Connector & terminal (B242) No. 10 (+) - Chassis ground (-):	Is the resistance less than 1 Ω?	Go to step 3.	Check the ground circuit.
3 CHECK THE PARKING SIGNAL. Connect the daytime running light module connector. Measure the resistance between the terminal and chassis ground when pulling parking brake lever and releasing. Connector & terminal (B96) No. 4 (+) - Chassis ground (-):	Does the voltage change to 0 <=> battery voltage?	Go to step 4.	Check the parking brake switch circuit.
4 CHECK THE STARTER SIGNAL. Turn the ignition switch to ON <=> Starter and measure the voltage of terminal. Connector & terminal (B96) No. 7 (+) - Chassis ground (-):	Does the voltage change to 0 <=> battery voltage?	Go to step 5.	Check the starter switch circuit.
5 CHECK THE HEADLIGHT SWITCH SIGNAL. Turn the headlight switch to LO <=> OFF and measure the voltage of terminal. Connector & terminal (B242) No. 2 (+) - Chassis ground (-):	Does the voltage change to 0 <=> battery voltage?	Go to step 6.	Check the combination switch and the headlight LO circuit.
6 CHECK THE HEADLIGHT SWITCH SIGNAL. Turn the headlight switch to HI <=> OFF and measure the voltage of terminal. Connector & terminal (B96) No. 1 (+) - Chassis ground (-):	Does the voltage change to 0 <=> battery voltage?	Go to step 7.	Check the combination switch and the headlight HI circuit.
7 CHECK THE HEADLIGHT SIGNAL. Turn the ignition switch to ON. Turn the headlight from HI to ON/OFF and measure the voltage of terminal. Connector & terminal (B242) No. 5 (+) - Chassis ground (-): (B96) No. 3 (+) - Chassis ground (-):	Does the voltage change to 0 <=> battery voltage?	Go to step 8.	Check the headlight HI circuit.
8 CHECK THE HEADLIGHT SIGNAL. Turn the ignition switch to ON. Measure the voltage of terminal on passing of headlight. Connector & terminal (B242) No. 4 (+) - Chassis ground (-):	Does the voltage change to 0 <=> battery voltage?	If the above test is OK, replace the daytime running light module.	Check the headlight HI circuit.