Radio Displays CAL or CAL ERR. GMC Truck Yukon XL - 2WD 2003

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2003 🢒 Yukon XL - 2WD 🢒 Body and Accessories 🢒 Entertainment 🢒 Radio Displays CAL or CAL ERR

Radio Displays CAL or CAL ERR W/O UM8

Step	Action	Yes	No
Schematic Reference: Radio/Audio System Schematics
1	Did you perform the Diagnostic System Check-Entertainment System?	Go to Step 2	Go to Diagnostic System Check - Entertainment System
2	Turn ON the ignition, with the engine OFF. Turn ON the radio. Does the radio operate normally?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Program the radio. Refer to Service Programming System (SPS) . Turn OFF the ignition. Turn ON the ignition, with the engine OFF. Turn ON the radio. Does the radio display CAL ERR?	Go to Step 4	Go to Step 5
4	Important: Reprogram the radio. Refer to Service Programming System (SPS) in Programming. Replace the radio. Refer to Radio Replacement . Did you complete the replacement?	Go to Step 5	--
5	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2

Radio Displays CAL or CAL ERR W/ UM8

Step	Action	Yes	No
Schematic Reference: Radio/Audio System Schematics
1	Did you perform the Diagnostic System Check - Entertainment System?	Go to Step 2	Go to Diagnostic System Check - Entertainment System
2	Turn ON the ignition, with the engine OFF. Turn ON the radio. Does the radio operate normally?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Program the radio. Refer to Service Programming System (SPS) in Programming. Turn OFF the ignition. Turn ON the ignition, with the engine OFF. Turn ON the radio. Does the radio display CAL ERR?	Go to Step 4	Go to Step 5
4	Replace the radio. Refer to Radio Replacement . Did you complete the replacement?	Go to Step 5	--
5	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2