|
|
Content .. 2689 2690 2691 2692 ..
Circuit/System Description The memory seat module (MSM) monitors the current supplied to the seat adjuster motors. The Conditions for Running the DTC The MSM establishes that it is not closing to a shorted motor control circuit before the motors are Conditions for Setting the DTC The following conditions exist for more than 1 second: B1335 00 Current out of the module does not match the current returning to the module within 5 amps. B1335 0B The absolute current or an over-current has exceeded the maximum value allowed. B1335 42 This DTC will set if the module calibration is not programmed. B1335 4B This DTC will set if the module calibration is out of range. Action Taken When the DTC Sets The adjustable pedal motor and all driver seat adjuster motors are disabled. Rearward Control B3920 02 1 B3920 01 B1335 0B Adjustable Pedal Motor B3920 02 1 B3920 01 B1335 00 B1335 0B Adjustable Pedal Motor B3920 02 1 B3920 01 B1335 00 B1335 0B 1. Power seat motor inoperative
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Power Seats - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Conditions for Clearing the DTC The current DTC will clear and set the code to history, 3 seconds after no motor movement A history DTC will clear after 50 ignition cycles or with a scan tool using the clear DTCs Reference Information Schematic Reference Driver Seat Schematics Passenger Seat Schematics Adjustable Pedal Schematics Connector End View Reference Component Connector End Views Description and Operation Memory Seats Description and Operation Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Scan Tool Reference Control Module References for Scan Tool Information Module Internal Malfunction If DTCs B1335 42 or B1335 4B are set history or current, the only option is module replacement. Circuit/System Testing
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Power Seats - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
1. Use a scan tool to clear the current and history diagnostic trouble code. 2. Ignition ON, while observing the scan tool for DTCs, operate the seat adjuster switch in both directions for each directional motor. 3. Disconnect the suspect seat motor for which the DTC set. 4. Clear the current and history diagnostic trouble code. 5. While observing the scan tool for DTCs, operate the suspect seat motor adjuster switch in both directions. If the DTC set current or history, test the motor control circuits for a short to ground, 6. If all circuits/connections test normal, replace the seat motor. Repair Procedures Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Front Seat Recliner Actuator Motor Replacement Front Seat Lumbar Support Replacement Front Seat Adjuster Replacement (Power) Brake Pedal Assembly Replacement Control Module References for MSM replacement, setup, and programming DTC B1395 Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach Diagnostic Procedure Instructions provides an overview of each diagnostic category DTC Descriptors DTC B1395 02 Device Voltage Reference Output Circuit Shorted to Ground DTC B1395 05 Device Voltage Reference Output Circuit Shorted to Battery or Open
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Power Seats - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Diagnostic Fault Information Circuit/System Description The memory seat module (MSM) supplies a 5-volt reference voltage to the driver seat and Conditions for Running the DTC The memory seat module must be powered. Conditions for Setting the DTC The following conditions exist for more than 1 second: B1395 02 Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance 5-Volt Reference B1395 02 B1395 05 B1395 05 - Memory Seat Sensor Low - B1825 01, B2375 01 - - Driver Seat Front Vertical B2355 06 B2355 06 B2355 01 - Driver Seat Rear Vertical B2365 06 B2365 06 B2365 01 - Driver Seat Horizontal Position B2375 06 B2375 06 B2375 01 - Driver Seat Lumbar Vertical B1860 06 B1860 06 B1860 01 - Driver Seat Lumbar Horizontal B1850 06 B1850 06 B1850 01 - Driver Seat Recline Position B1825 06 B1825 06 B1825 01 -
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Power Seats - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Content .. 2689 2690 2691 2692 ..
|
|
|