Silverado 2008

4.3L V6 VIN X Auto 6

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Trouble Code: B1722 02



Mirror Power Fold Circuit Short to Ground

Possible Causes:



An improper voltage level is seen on either the folding mirror motor retract control circuit or the folding mirror motor extend control circuit.
 

Trouble Code: B1722 04



Mirror Power Fold Circuit Open

Possible Causes:



An improper voltage level is seen on either the folding mirror motor retract control circuit or the folding mirror motor extend control circuit.
 

Trouble Code: B1825 06



Seat Recline Position Sensor Circuit Short to Ground or Open

Possible Causes:



B1825 06, B1850 06, B1860 06, B2355 06, B2365 06, B2375 06
 
If the MSM sees the analog input from this sensor is less than 0.22 volts, the sensor will be considered out of range and the MSM will set this DTC.
 

Trouble Code: B1850 06



Left Seat Lumbar Horizontal Position Sensor Circuit Short to Ground or Open

Possible Causes:



B1825 06, B1850 06, B1860 06, B2355 06, B2365 06, B2375 06
 
If the MSM sees the analog input from this sensor is less than 0.22 volts, the sensor will be considered out of range and the MSM will set this DTC.
 

Trouble Code: B1860 06



Left Seat Lumbar Vertical Position Sensor Circuit Short to Ground or Open

Possible Causes:



B1825 06, B1850 06, B1860 06, B2355 06, B2365 06, B2375 06
 
If the MSM sees the analog input from this sensor is less than 0.22 volts, the sensor will be considered out of range and the MSM will set this DTC.
 

Trouble Code: B1935 04



Left Seat Back Heater Circuit Open

Possible Causes:



B1935 04, B2180 04
 
The module does not detect a temperature change within 210 seconds.
 

Trouble Code: B1935 0A



Left Seat Back Heater Circuit Rate of Change Below Threshold

Possible Causes:



B1935 0A, B2180 0A
 
The module detects that the set point temperature has not been reached within 8.5 minutes.
 

Trouble Code: B1935 0B



Left Seat Back Heater Circuit Current Above Threshold

Possible Causes:



B1935 0B, B1935 0E, B2180 0B, B2180 0E
 
By measuring output current, the module calculates that the heating element resistance is below the minimum resistance.
 

Trouble Code: B1935 0C



Left Seat Back Heater Circuit Current Below Threshold

Possible Causes:



B1935 0C, B1935 0D, B2180 0C, B2180 0D
 
By measuring output current, the module calculates that the heating element resistance is above the maximum resistance.
 

Trouble Code: B1935 0D



Left Seat Back Heater Circuit Resistance Above Threshold

Possible Causes:



B1935 0C, B1935 0D, B2180 0C, B2180 0D
 
By measuring output current, the module calculates that the heating element resistance is above the maximum resistance.
 

Trouble Code: B1935 0E



Left Seat Back Heater Circuit Resistance Below Threshold

Possible Causes:



B1935 0B, B1935 0E, B2180 0B, B2180 0E
 
By measuring output current, the module calculates that the heating element resistance is below the minimum resistance.
 

Trouble Code: B1935 1F



Left Seat Back Heater Circuit Intermittent

Possible Causes:



B1935 1F, B2180 1F
 
The temperature sensor voltage is erratic or changes suddenly.
 

Trouble Code: B1E3A 03



Sensor Power Circuit Voltage Below Threshold

Possible Causes:



B1E3A 03
 
The object alarm module has detected the 8-volt reference circuit is less than 7.2 volts.
 

Trouble Code: B1E3A 07



Sensor Power Circuit Voltage Above Threshold

Possible Causes:



B1E3A 07
 
The object alarm module has detected the 8-volt reference circuit is greater than 9.2 volts.
 

Trouble Code: B2180 04



Right Seat Back Heater Circuit Open

Possible Causes:



B1935 04, B2180 04
 
The module does not detect a temperature change within 210 seconds.
 

Trouble Code: B2180 0A



Right Seat Back Heater Circuit Rate of Change Below Threshold

Possible Causes:



B1935 0A, B2180 0A
 
The module detects that the set point temperature has not been reached within 8.5 minutes.
 

Trouble Code: B2180 0B



Right Seat Back Heater Circuit Current Above Threshold

Possible Causes:



B1935 0B, B1935 0E, B2180 0B, B2180 0E
 
By measuring output current, the module calculates that the heating element resistance is below the minimum resistance.
 

Trouble Code: B2180 0C



Right Seat Back Heater Circuit Current Below Threshold

Possible Causes:



B1935 0C, B1935 0D, B2180 0C, B2180 0D
 
By measuring output current, the module calculates that the heating element resistance is above the maximum resistance.
 

Trouble Code: B2180 0D



Right Seat Back Heater Circuit Resistance Above Threshold

Possible Causes:



B1935 0C, B1935 0D, B2180 0C, B2180 0D
 
By measuring output current, the module calculates that the heating element resistance is above the maximum resistance.
 

Trouble Code: B2180 0E



Right Seat Back Heater Circuit Resistance Below Threshold

Possible Causes:



B1935 0B, B1935 0E, B2180 0B, B2180 0E
 
By measuring output current, the module calculates that the heating element resistance is below the minimum resistance.
 

Trouble Code: B2180 1F



Right Seat Back Heater Circuit Intermittent

Possible Causes:



B1935 1F, B2180 1F
 
The temperature sensor voltage is erratic or changes suddenly.
 

Trouble Code: B2345 13



Seat Heater Elements Temperature Above Threshold

Possible Causes:



B2345 13
 
Any of the temperature sensor inputs remains below 1.5 volts for a seat back or 0.95 volts for a seat cushion more than 1 second.
 

Trouble Code: B2355 06



Left Seat Front Vertical Position Sensor Circuit Short to Ground or Open

Possible Causes:



B1825 06, B1850 06, B1860 06, B2355 06, B2365 06, B2375 06
 
If the MSM sees the analog input from this sensor is less than 0.22 volts, the sensor will be considered out of range and the MSM will set this DTC.
 

Trouble Code: B2365 06



Left Seat Rear Vertical Position Sensor Circuit Short to Ground or Open

Possible Causes:



B1825 06, B1850 06, B1860 06, B2355 06, B2365 06, B2375 06
 
If the MSM sees the analog input from this sensor is less than 0.22 volts, the sensor will be considered out of range and the MSM will set this DTC.
 

Trouble Code: B2375 06



Left Seat Assembly Horizontal Position Sensor Circuit Short to Ground or Open

Possible Causes:



B1825 06, B1850 06, B1860 06, B2355 06, B2365 06, B2375 06
 
If the MSM sees the analog input from this sensor is less than 0.22 volts, the sensor will be considered out of range and the MSM will set this DTC.
 

Trouble Code: B2435 02



Left Seat Back Heater Sensor Circuit Short to Ground

Possible Causes:



B2435 02, B2440 02
 
The temperature sensor voltage drops below 0.8 volt for more than 1 second.
 

Trouble Code: B2440 02



Right Seat Back Heater Sensor Circuit Short to Ground

Possible Causes:



B2435 02, B2440 02
 
The temperature sensor voltage drops below 0.8 volt for more than 1 second.
 

Trouble Code: B2455 04



Cellular Phone Microphone Circuit Malfunction Open Circuit

Possible Causes:



The CIM detects an open, short to ground or short to voltage in the cellular phone microphone signal circuit for 10 seconds or greater.
 
The CIM detects an open/high resistance in the drain wire circuit for 10 seconds or greater.
 

Trouble Code: B2470 04



Cellular Phone Antenna Circuit Malfunction Open Circuit

Possible Causes:



The CIM does not detect the presence of a cellular antenna.
 
The above conditions are present for greater than 1 second.
 

Trouble Code: B2474 07



Navigation Display Head Backlighting Performance

Possible Causes:



The navigation radio tests the navigation display backlighting every 1 second.
 
The radio determines there is a malfunction or overheat condition in the navigation display backlighting.
 

Trouble Code: B2476 04



Cellular Phone Select Service Switch Open Circuit

Possible Causes:



B2476 04
 
The CIM detects an open/high resistance on the keypad supply voltage circuit.
 
B2482 and B2476 59
 
The CIM detects a valid signal on the keypad signal circuit for longer than 15 seconds. If one of the OnStar® buttons is held or stuck for 15 seconds or greater, the CIM will set this DTC.
 

Trouble Code: B2476 59



Cellular Phone Select Service Switch Stuck Button

Possible Causes:



B2476 04
 
The CIM detects an open/high resistance on the keypad supply voltage circuit.
 
B2482 and B2476 59
 
The CIM detects a valid signal on the keypad signal circuit for longer than 15 seconds. If one of the OnStar® buttons is held or stuck for 15 seconds or greater, the CIM will set this DTC.
 

Trouble Code: B2482 00



Cellular Phone Select Service Switch Range/Performance

Possible Causes:



B2476 04
 
The CIM detects an open/high resistance on the keypad supply voltage circuit.
 
B2482 and B2476 59
 
The CIM detects a valid signal on the keypad signal circuit for longer than 15 seconds. If one of the OnStar® buttons is held or stuck for 15 seconds or greater, the CIM will set this DTC.
 

Trouble Code: B2530 00



Front Fog Lamp Control Circuit

Possible Causes:



The BCM detects a short to voltage in the fog lamp relay control circuit for 5 seconds or greater.
 

Trouble Code: B2555 01



Passenger Compartment Lamp Control Circuit Short to Battery

Possible Causes:



B2555 01
 
The driver or passenger door switch detects a short to voltage in the courtesy lamp control circuit.
 

Trouble Code: B2555 02



Passenger Compartment Lamp Control Circuit Short to Ground

Possible Causes:



B2555 02
 
The driver or passenger door switch detects a short to ground in the courtesy lamp control circuit.
 

Trouble Code: B2585 00



Park Lamp Control Circuit

Possible Causes:



The BCM detects a short to voltage in the PARK LAMP Relay control circuit.
 

Trouble Code: B2610 00



Passenger Compartment Dimming 1 Circuit

Possible Causes:



The BCM detects a short to ground in the LED backlight dimming control circuit.
 

Trouble Code: B2615 00



Passenger Compartment Dimming 2 Circuit

Possible Causes:



The BCM, driver door lock and side window switch, or passenger door lock and side window switch detects a short to ground, short to voltage, or open on the courtesy lamp voltage supply circuit.
 

Trouble Code: B2625 00



Display Dimming Pulse Width Modulation (PWM) Output Circuit

Possible Causes:



The BCM detects a short to ground in the LED indicator dimming control circuit.
 

 
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