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Seat Temperature Control Module

Body and Frame › Relays and Modules - Body and Frame
Unified entry — merged from multiple cross-listed pages in the original manual.

Parts

PartControl Module
ManufacturerCHY
OEM part #56046630AA
Price$22.10
PartControl Module
ManufacturerCHY
OEM part #56046630AA
Price$22.10

Labor

Replace0.5 hr
Warranty 0.0 hrSkill B
Replace0.5 hr
Warranty 0.0 hrSkill B
Procedures
Heated Seat Module - Installation4 steps
△ CAUTION
The heated seat module mounting tab can be damaged during module service. Use care when removing the mounting tab from the seat pan to help prevent tab breakage. Properly align the mounting tab to the seat pan during installation.
Fig. 1
Fig. 1
  1. Position the heated seat module (3) to the front seat and connect the wire harness connector (4) to the module.
  2. Position the heated seat module mounting tab (2) to the hole in the seat pan (1). Firmly apply even pressure until the mounting tab is fully engaged to the seat pan.
  3. Reconnect the negative battery negative.
  4. Check for proper heated seat system operation.
Heated Seat Module - Removal4 steps
△ CAUTION
The heated seat module mounting tab can be damaged during module service. Use care when removing the mounting tab from the seat pan to help prevent tab breakage. Properly align the mounting tab to the seat pan during installation.
Fig. 1
Fig. 1
  1. Position the front passenger seat fully rearward.
  2. Disconnect and isolate the negative battery cable.
  3. Disengage the heated seat module mounting tab (2) from the seat pan (1).
  4. Disconnect the wire harness connector (4) from the heated seat module (3) and remove the module.
Seat Temperature Control Module: Testing and Inspectionreference
ℹ NOTE
Vehicles equipped with the heated seat option utilize a low voltage cut-off feature. This feature turns off power to the heated seat system anytime vehicle voltage is below 11.7v or above 15.5v. Be certain to check the vehicle electrical system for proper voltage anytime the power seat system appears inoperative.
HEATED SEAT MODULE In order to obtain conclusive testing, the heated seat system and the Local Interface Network (LIN) data bus circuit must be checked. Any diagnosis of the heated seat system should begin with, the use of a scan tool and the appropriate diagnostic service information. Refer to the appropriate wiring information for complete circuit schematic or connector pin-out information. Before any testing of the heated seat system is attempted, the battery should be fully-charged.
Heated Seat Module - Descriptionreference
Fig. 1
Fig. 1
DESCRIPTION The heated seat module (1) is located under the left front seat. It has a single electrical connector (2) and a push pin style retainer that secures it to the seat pan (3). The module can be accessed from under the front left seat with the seat in the full back and up position. The heated seat module is a microprocessor designed to use the Local Interface Network (LIN) data bus messages from the instrument cluster, sometimes referred to as the Cab Compartment Node (CCN). The CCN receives inputs from the heated seat switches and in turn signals the heated seat module to operate the heated seat elements for both front seats.
Heated Seat Module - Installation4 steps
△ CAUTION
The heated seat module mounting tab can be damaged during module service. Use care when removing the mounting tab from the seat pan to help prevent tab breakage. Properly align the mounting tab to the seat pan during installation.
Fig. 1
Fig. 1
  1. Position the heated seat module (3) to the front seat and connect the wire harness connector (4) to the module.
  2. Position the heated seat module mounting tab (2) to the hole in the seat pan (1). Firmly apply even pressure until the mounting tab is fully engaged to the seat pan.
  3. Reconnect the negative battery negative.
  4. Check for proper heated seat system operation.
Heated Seat Module - Removal4 steps
△ CAUTION
The heated seat module mounting tab can be damaged during module service. Use care when removing the mounting tab from the seat pan to help prevent tab breakage. Properly align the mounting tab to the seat pan during installation.
Fig. 1
Fig. 1
  1. Position the front passenger seat fully rearward.
  2. Disconnect and isolate the negative battery cable.
  3. Disengage the heated seat module mounting tab (2) from the seat pan (1).
  4. Disconnect the wire harness connector (4) from the heated seat module (3) and remove the module.
Seat Temperature Control Module: Testing and Inspectionreference
ℹ NOTE
Vehicles equipped with the heated seat option utilize a low voltage cut-off feature. This feature turns off power to the heated seat system anytime vehicle voltage is below 11.7v or above 15.5v. Be certain to check the vehicle electrical system for proper voltage anytime the power seat system appears inoperative.
HEATED SEAT MODULE In order to obtain conclusive testing, the heated seat system and the Local Interface Network (LIN) data bus circuit must be checked. Any diagnosis of the heated seat system should begin with, the use of a scan tool and the appropriate diagnostic service information. Refer to the appropriate wiring information for complete circuit schematic or connector pin-out information. Before any testing of the heated seat system is attempted, the battery should be fully-charged.
Heated Seat Module - Descriptionreference
Fig. 1
Fig. 1
DESCRIPTION The heated seat module (1) is located under the left front seat. It has a single electrical connector (2) and a push pin style retainer that secures it to the seat pan (3). The module can be accessed from under the front left seat with the seat in the full back and up position. The heated seat module is a microprocessor designed to use the Local Interface Network (LIN) data bus messages from the instrument cluster, sometimes referred to as the Cab Compartment Node (CCN). The CCN receives inputs from the heated seat switches and in turn signals the heated seat module to operate the heated seat elements for both front seats.