I have a 2008 Veracruz Limited . Activating the drivers heated leather seat switch , results in the fuse blowing . Also when that occurs the cruise control RESUME function quits working .If there is a short in the heater pad--should I expect a replacement seat or can the pad be replaced and the leather reinstalled good as new ? The vehicle has 5000 miles on it .Thanks, Larry
This would Definately be a Short And, Yes you Can just replace the Pad. Could just be that the Wiring is in a Bind and needs to be Moved around. Seeing that it only has 5000 K on it, It should still be Under the Factory Warranty and they should repair this Free of Charge.
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How to diagnose this problem ? Viewing wiring diagrams to see what all is invovled in these electrical circuit's , check power supply's an ground connection's using a DMM - digital multimeter !
What type power seat's ? does it have memory ,heated an cooled etc ?
Power Seats System Description and Operation
There are 2 options of power seat systems available in full size trucks. The first is 6 way driver and passenger power seats without memory. The second is an 8-way driver seat plus 4-way lumbar with memory, heat and optional cool function. While the passenger has 8-way power seats with heat and optional cool function. For the driver memory seat operation, refer to Memory Seats Description and Operation. Power seats without memory are completely controlled through the power seat switch. Battery voltage is supplied to the power seat switch through the power seat circuit breaker. While the seat adjuster switches are in an inactive state the switch contacts are closed to the power seat switch ground circuit. When a power seat switch is pressed to an active state the switch contact is closed to the battery voltage supply circuit. Each seat adjuster motor is controlled by the power seat switch through 2 motor control circuits. The seat adjuster motors are bidirectional and the direction of adjuster motor rotation is determined by which of the adjuster motor control circuits is switched to battery voltage while the other remains grounded.
If it has memory seat's there is a control module !
Battery voltage is supplied to the driver seat module through a 25 A circuit breaker. The driver seat module supplies the seat adjuster switch assembly with a battery positive reference voltage. While the seat adjuster switches are in an inactive state the switch contacts are closed to the adjuster switch common circuit.
Both right side windows have a seperate power supply from the left side window's ,has RT DOORS circuit breaker CB1 - 25amp. location left instrument panel fuse block . Circuit breaker's very rarely fail .Do the door lock's work on that side of the vehicle ? The windows won't work with their own switche's ?
The DDS controls the passenger window through a GMLAN message to the PDS. When a power window switch is activated in the up or down positions the PDS supplies power and ground to the window motor control circuits to drive the window motor in the required direction. Prior to activating a power window motor the PDS will supply the control circuit with a low current bias voltage in order to determine that a short to ground condition does not exist, and during window motor operation the PDS continues to monitor the motor current to verify proper window motor operation. (Scan tool support is available for this system)
Check PDM fuse 4 15 amp ,this supply's B+ voltage to the DOORLOCK/WINDOW switch passenger side . Check for broken wires inside the flex boot from the body to the passenger door .
I have a 2005 Bonneville and lost my driver seat heater. The typical problem is a broken wire or connection in the seat section of the seat. If you're lucky, it may be a simple break like mine was; under the seat.
I pulled my seat out to work on it. Here's a picture of my broken wire towards the rear:
But, that didn't fix my problem. I also had a bad module. The control module is the same for both seats, so I was able to switch the modules and get my driver seat heater working. Here's a picture of the module. The module cost at the dealer is about $80-100(?)
the switch works the relay, the relay powers the heater, being a 12volt heating element, it's bound to have a good size wire going to it, make sure the wire feeding that relay is hot, it will be a larger inline fuse or a fusable link,it will come off a main power source,I.E. the starter or something like that, the small fuse you replaced is for the relay curcuit,good luck
Most harnesses are made with plugs for every option. You would need a seat, and to find the switch harness (if remote from seat.) You will also need to put a fuse or breaker into the fuse panel for that option. I'd also check to see if any relays are used for that as well (most scrapyards can tell you and also should have everything you need.
The heater element for the seat is broken or damaged....It will need to be replaced....The blinking light lets you know there is a problem and does not let power flow to the element. This is for safety reasons to prevent short out or even fire.