One Or More ONSTAR (R) Buttons Do Not Operate.

DEFINITION: OnStar(R) does not operate by pressing button.

Fig 1: Identifying B: One Or More OnStar(R) Buttons Do Not Operate

G03510759

Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTICS CHART WITH TROUBLE CODE

Step	Check	Yes	No
1 CHECK BUTTON ASSEMBLY. IMPORTANT: Before pressing button, call OnStar (R) call center to notify the inspection. Turn ignition switch to ON (do not let the engine run). Press each OnStar (R) button.	Does the LED illuminate in green?	Go to step 3.	Go to step 2.
2 CHECK BUTTON.	Does any button malfunction intermittently?	Go to step 7.	Poor contact of connection/Repair poor contact.
3 CHECK HARNESS. Turn ignition switch to OFF. Disconnect VIU connector. Disconnect button assembly connector. Measure resistance between VIU connector and button assembly connector. Connector & Terminal (i73) No. 4 - (i69) No. 1: (i73) No. 6 - 069) No. 3:	Is the measured value less than 0.5 ohm?	Go to step 4.	Repair open harness.
4 CHECK HARNESS. Measure resistance between VIU connector and chassis ground. Connector & Terminal (i73) No. 4 (+) - Chassis ground (-): (i73) No. 6 (+) - Chassis ground (-):	Is the measured value More than 1 Mohm?	Go to step 5.	Repair ground short of harness.
5 CHECK HARNESS. Turn the ignition switch to ON. Measure voltage between VIU connector and chassis ground. Connector & Terminal (i73) No. 4 (+) - Chassis ground (-): (i73) No. 6 (+) - Chassis ground (-):	Is the measured value less than 1 V?	Go to step 6.	Repair battery short of harness.
6 CHECK VOLTAGE OF POWER SUPPLY. Turn ignition switch to OFF. Connect VIU connector. Turn the ignition switch to ON. Measure voltage between button assembly connector and chassis ground. Connector & Terminal (i69) No. 3 (+) - Chassis ground (-):	Is the measured value within 9 to 16 V?	Go to step 7.	REFERENCE: Perform OnStar (R) setup procedure. Replace VIU. < Ref. to REMOVAL , VEHICLE INTERFACE UNIT VIU. >
7 CHECK EMERGENCY BUTTON. Measure resistance between terminals of button assembly. Terminal No. 1 - No. 3:	Is the measured value 3.0 Kohm by pressing emergency button?	Go to step 8.	Replace button assembly. < Ref. to REMOVAL , BUTTON ASSEMBLY. >
8 CHECK OnStar (R) BUTTON. Measure resistance between terminals of button assembly. Terminal No. 1 - No. 3:	Is the measured value 13.0 Kohm. by pressing OnStar (R) button?	Go to step 9.	Replace button assembly. < Ref. to REMOVAL , BUTTON ASSEMBLY. >
9 CHECK CALL ANSWER/END BUTTON. Measure resistance between terminals of button assembly. Terminal No. 1 - No. 3:	Is the measured value 470 ohm by pressing call answer/end button?	Go to step 10.	Replace button assembly. < Ref. to REMOVAL , BUTTON ASSEMBLY. >
10 CHECK POOR CONNECTION OF BUTTON ASSEMBL. Check, if there is any poor contact in harness connector of button assembly.	Was the condition confirmed or repaired?	Go to step 12.	Go to step 11.
11 CHECK IF THERE IS ANY POOR CONTACT IN VIU HARNESS CONNECTOR.	Was the condition confirmed or repaired?	Go to step 12.	Go to step 13.
12 CHECK SYSTEM. Run the system and confirm the result of repair.	Was the trouble repaired?	System is OK.	Go to step 13.
13 CHECK BUTTON ASSEMBLY. Replace button assembly. < Ref. to REMOVAL , BUTTON ASSEMBLY. > Run the system and confirm the result of repair.	Was the trouble repaired?	System is OK.	Go to step 14.
14 CHECK VIU. REFERENCE: Perform OnStar (R) setup procedure. Replace VIU. < Ref. to REMOVAL , VEHICLE INTERFACE UNIT VIU. > Run the system and confirm the result of repair.	Was the trouble repaired?	System is OK.	Go to step 1.