Scan Tool Does Not Communicate with E and C Data Line. GMC Truck GMC Suburban

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 1998 🢒 GMC Suburban - 2WD 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Scan Tool Does Not Communicate with E and C Data Line

Step	Action	Value(s)	Yes	No
1	Did you perform the Radio/Audio Diagnostic System Check?	--	Go to Step 2	Radio/Audio System Check
2	Turn ignition to the OFF position. Disconnect the scan tool, if connected. Disconnect connector C2 from the Radio. Connect a J 39200 Is continuity present?	--	Go to Step 3	Go to Step 4
3	Replace the Radio. Refer to Radio Replacement Is the repair complete?	--	Radio/Audio System Check	--
4	Locate and repair the open or cause of resistance in CKT 835 (DK GRN) between the Radio and the DLC. Refer to Wiring Repairs Is the repair complete?	--	Radio/Audio System Check	--