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DIAGNOSTIC STARTING POINT - SEATS Begin the system diagnosis with the Diagnostic System Check - Vehicle . The Diagnostic The identification of the control modules which command the system. The ability of the control modules to communicate through the serial data circuit. The identification of any stored diagnostic trouble codes (DTCs) and their status. The use of the Diagnostic System Check will identify the correct procedure for diagnosing the DTC B1925 OR B2170 Diagnostic Instructions B2425 1F: Left Seat Cushion Heater Circuit Intermittent B2430 04: Right Seat Cushion Heater Circuit Open B2430 0A: Right Seat Cushion Heater Circuit Rate of Change Below Threshold B2430 0B: Right Seat Cushion Heater Circuit Current Above Threshold B2430 0C: Right Seat Cushion Heater Circuit Current Below Threshold B2430 0D: Right Seat Heater Cushion Circuit Resistance Above Threshold B2430 0E: Right Seat Heater Cushion Circuit Resistance Below Threshold B2430 1F: Right Seat Cushion Heater Circuit Intermittent DTC B2435 or B2440 B2435 02: Left Seat Back Heater Sensor Circuit Shorted to Ground B2435 05: Left Seat Back Heater Sensor Circuit Shorted to Battery or Open B2440 02: Right Seat Back Heater Sensor Circuit Shorted to Ground B2440 05: Right Seat Back Heater Sensor Circuit Shorted to Battery or Open DTC B2508 or B2509 B2508 01: Seat Heater Relay Circuit Shorted to Battery or Open B2508 02: Seat Heater Relay Circuit Shorted to Ground
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Seat Heating and Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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