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2003 Chevrolet Avalanche Support Question

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Question posted by gorseLIZGR on August 16th, 2014

03 Avalanche Seat Heater Will Work As Long As The Power Seat Is Moving

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Answer #1: Posted by waelsaidani1 on August 16th, 2014 1:26 PM

This answer was accepted by the poster of the original question.

waelsaidani1

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Cause
A logic lockup of the memory seat control module may cause this condition.

Correction
Important: This repair is not to be performed on vehicles without memory/heated seats. If the vehicle does not have memory/heated seats but has an inoperative power seat, use published Service Information to diagnose the concern.

If the seat is currently inoperable, perform the following diagnostic steps to determine if replacement of the memory seat control module is the correct repair:

Connect a Tech 2® to the vehicle and monitor the parameters in the sensor data list for the driver seat module as you try to move the seat. Are the displayed data parameters changing, or does the Tech 2® display no communication as the seat switch is moved to various positions? If the data parameters do not change, the memory seat control module may be inoperative due to a logic lockup.
Remove the SEAT circuit breaker in the instrument panel relay block located under the left side of the instrument panel next to the parking brake. This circuit breaker also supplies power to the passenger seat.
Verify that the circuit breaker is not open. If it is not open, wait 30 seconds and then reinstall the circuit breaker.
Try to move the seat again.
If the seat moves or the data parameters displayed on the Tech 2® change when the seat switch is activated, replace the memory seat control module. Use the Memory Seat Control Module Replacement procedure in SI.
If the memory seat is still inoperative, use normal Service Manual diagnostics to determine the cause of this condition.

Related Manual Pages

Owner's Manual - Page 6

...DO NOT TWIST SAFETY BELT WHENAlTACHlNG FASTEN SEAT BELTS MOVE SEAT FULLY REARWARD+ SECURE CHILD SEAT PULL BELT COMPLETELY rHEN SECURE CHILD SEAT MASTER \ ENGINE COOLANT TEMP rh PROTECT ...SEATING POSITION PARKING LAMPS HAZARD WARNING FLASHER COOLANT AVO ID SPARKS OR FLAMES SPARK OR FLAME COULD EXPLODE BAlTERY '\I/' POWER WINDOW DO NOT INSTALL A 'ORWARD-FACING CHILD RESTRAINT IN THIS SEATING...

Owner's Manual - Page 8

... Check ...1-66 Checking Your Restraint Systems ...1-66 Replacing Restraint System Parts After a Crash ...1-66 Front Seats ...1-2 Manual Passenger Seat ...1-2 ...-1-2 Power ...1-3 Power Lumbar Heated Seats ...1-4 Reclining Seatbacks ...1-5 Head Restraints ...1-7 1-8 Rear Seats ...Rear Seat Operation ...1-8 Safety Belts ...1-10 Safety Belts: They Are for Everyone ...1-10 Questions and Answers About...

Owner's Manual - Page 9

.... Then, release the lever and try to move the seat with your body to make sure that the seat is locked into place. 1-2 Raise or lower the front of the seat by raising or lowering the rear edge of the seat. Horizontal Control: If your vehicle has a power seat, you can adjust it with the horizontal control...

Owner's Manual - Page 10

... of the control when the lower seatback reaches the desired level of the vehicle. I ... - , ,- . . 1 * Moving the whole control up or down raises or lowers the entire seat cushion. .,". Power Lumbar t. ..." , _" _l", I Vertical Control: If your vehicle has power reclining seats, you can use the vertical control to adjust the angle of the control. Let go...

Owner's Manual - Page 11

...Press the button to cycle through the temperature settings of high, medium and low and to work. Heated Seats To decrease support in the wing area of the lower seatback, press and hold the bottom...the lower seatback, press and hold the top of the control. Your vehicle may have heated front seats. The engine must be running for low. 1-4 Let go of the control when the lower ...

Owner's Manual - Page 12

...Reclining Seatbacks To heat only the seatback, press the vertical button with a power recliner, see Power Seats on page 1-2for further information on the seatback button will glowto designate that...of the seatback button will be able to heat the whole seat. The lever is being heated. If your vehicle has power seats with the heated seatback symbol. Press the horizontal button again to...

Owner's Manual - Page 14

The rear seat head restraints in a crash. Head Restraints Adjust your head restraint so that the top of the restraint is closest to the top of a neck injury in your head. They work the same as the front seat head restraints. This position reduces the chance of your vehicle are adjustable.

Owner's Manual - Page 17

... vehicle is in all Canadian provinces, the law says to use safety belts properly. Here's why: They work. 1-10 t let a--= one ride wher - .le or -..e can be ejected from it. If you...belts. See Safety Belt Reminder Light on as a reminder to buckle up . In most states and in seat and using a safety belt properly. Safety Belts Safety Belts: They Are for Everyone This part of your...

Owner's Manual - Page 18

... be so serious that even buckled up does matter ...a lot! In most crashes are clear. Why Safety Belts Work When you ride in or on anything, you go as fast as it 's just a seat on wheels. 1-11 Suppose it goes. If you do have been badly hurt or killed. A few crashes are...

Owner's Manual - Page 23

...would be riding in the Index. 3. Pull up on page 1-34. If the belt isn't long enough, see "Seats" in your vehicle has. How to Wear Safety Belts Properly This part is only for everyone's protection... Driver Position This part describes the driver's restraint system. Close and lock the door. 2. Adjust the seat so you can sit up the latch plate and pull the belt across you 'll want to know ...

Owner's Manual - Page 31

... the shoulder portion of the belt out all the way and start again. When you sit in the center rear seat position, you will engage the child restraint locking feature which works the same way as for one thing. When a safety belt is wearing them properly. If your vehicle has front and...

Owner's Manual - Page 32

... To make the longer, the belt tilt latch plate and pull it the sameway asthe lap part of a lap-shoulder belt, If the belt isn't long 1-31. Whenyousit in acenter front seating position, you ever had to. 1-25 Buckle, position and release it along the belt.

Owner's Manual - Page 38

...extender will be just for you an extender. It's free. The extender will be long enough for you. To remove and store the comfort guides, squeeze the belt edges ...seat it to the regular safety belt. 4. When you go in Rear Seat Passengers on page 1-26. Buckle, position and release the safety belt as described in to fasten, your vehicle that you choose. But if a safety belt isn't long...

Owner's Manual - Page 157

... in the front overhead console to block sun rays. See "Retained Accessory Power" under lgnition Positions on or RAP needs to be fully seated unless the button is removed, the glass panel can pull forward to express-open for long periods of time as it is fully tilted rearward. To close your sunroof...

Owner's Manual - Page 184

... use the automatic mode, press AUTO and adjust the temperature by your warranty. The rear window defogger will automatically run to defrost the windshield. The heater works best if you need additional warming time, press the button again. If the outside temperature is equipped with heated mirrors this setting to turn the...

Owner's Manual - Page 188

...as leaves). Keep the air path under the front seats clear of objects. e e After the button with your dealer before adding equipment to circulate throughout your windows. The heater and defroster will adjust to enter the vehicle. ... Controls Personalization If your vehicle is pressed, the climate control will work far better, reducing the chance of fogging the inside of your vehicle.

Owner's Manual - Page 258

... Radio Service), or DAB (if your cellular teleDhone in the player. Turn the power off and sometimes at the beginning. Recommended Action Problem This could permanently damage the DVD... options. Rear Seat Audio (RSA) This feature allows rear seat passengers to listen to the inputs properly. The Load/Eject button does not work. the headphones. For example, rear seat passengers may listen...

Owner's Manual - Page 478

...ofYour DVD Player ...3-103 3-104 Cleaning the Video Screen ...Distortion ...3-101 RearSeatEntertainmentSystem ...3-90 DVD Player ...3-90 E Easy Exit Seat ...2-86 Electrical System ...5-94 Fuses and Circuit Breakers ...5-95 Power Windows and Other Power 5-94 Options ...Windshield Wiper Fuses ...5-94 Electrochromic Mirror Operation ...2-45, 2-48 Emissions Inspection and Maintenance Programs ...3-42...

Owner's Manual - Page 487

...Lumbar ...1-3 Power Seats ...1-2 Rear Seat Operation ...1-8 Reclining Seatbacks ...1-5 Secondary Latch System ...5-81 Securing a Child Restraing Center Front Seat Position ...1-47 Securing a Child Restraint 1-45 RearSeat Position ...Right Front Seat Position ...1-48 Security Light ...3-44 Select Button ...3-47 Service ...5-3 Adding Equipment to the Outside ofYour Vehicle ...5-4 Doing Your Own Work...

Owner's Manual - Page 490

... Number(VIN) ...5-93 Service Parts Identification Label ...5-93 Vehicle Personalization Memory Seat ...2-85 VehicleStorage ...5-42 Ventilation Adjustment ...3-28 VideoScreen ...3-93 Vinyl ...5-87 Visors...Check ...5-59 When to CheckandChange ...5-22 When to Check Lubricant ...5-49 When to Check Power Steering Fluid ...5-37 When You Are Ready to Leave After Parking ona Hill ...4-67 Where to Put...