Defogger Indicator Inoperative. GMC Truck Sonoma Pickup

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 1998 🢒 Sonoma Pickup - 4WD 🢒 Body and Accessories 🢒 Stationary Windows 🢒 Defogger Indicator Inoperative

Step	Action	Value(s)	Yes	No
1	Was the entire Defogger System Check performed?	--	Go to Step 2	Go to Defogger System Check
2	Replace the Heater and A/C Controller. Refer to Control Assembly Replacement in HVAC Systems with A/C - Manual. Is the repair complete?	--	Go to Defogger System Check	--

Step

Action

Value(s)

Yes

Was the entire Defogger System Check performed?

Replace the Heater and A/C Controller. Refer to Control Assembly Replacement in HVAC Systems with A/C - Manual.

Is the repair complete?