Normal Operation
The DSM is powered by battery voltage from circuit 29-AH80 (OG/WH) and 30-AH80 (RD) and is supplied ground on circuit 31-AH80 (BK) and 91-AH80 (BN/WH).
The DDM is power by battery voltage from circuits 29-AJ80 (OG) and ignition voltage circuit 29S-AJ86 (OG/BU) and is supplied ground on circuits 91-AJ80 (BN/BU) and 31-AJ80B (BK/OG).
The power seat switch is powered by battery voltage to driver seat control switch circuit 30-AH35 (RD/YE) and is supplied ground on driver circuit 31-AH35 (BK/YE).
The power seat switch is powered by battery voltage to passenger seat control switch circuit 30-AH42 (RD) and is supplied ground on passenger circuits 31-AH42 (BK).
The power seat should move quietly during operation. Some noise is acceptable.
The power seat movement should be smooth and the seat cushion should not rock during or after operation.
The driver power seat should travel fully horizontal (forward/rearward) and vertical (front up/down and rear up/down). The passenger power seat should travel fully horizontal (forward/rearward) and vertical (front up/down).
The power seat switch is powered by battery voltage on driver circuit 30-AH35 (RD/YE) and is supplied ground on circuit 31-AH35 (BK/YE). When pressed, the power seat switch supplies that voltage and ground to a power seat track motor to move the seat. When pressed in the opposite direction, the power seat switch reverses the polarity to that same power seat track motor, which moves the seat in the opposite direction. There are three power seat track motors that combine to move the seat cushion horizontally (forward/reverse) and vertically (front up/down and rear up/down). The power recliner cannot be repaired separately. If the power recliner needs to be repaired, an entirely new front seat backrest frame must be installed.
The power seat switch is powered by battery voltage to driver seat control switch circuit 29-AH35 (OG/YE) and is supplied ground on driver circuit 91-AH35 (BN). When pressed, the power seat switch supplies the voltage and ground to the driver seat module (DSM). The DSM then supplies voltage and ground to the appropriate power seat track motor based on the inputs received from the seat control switch. When pressed in the opposite direction, the power seat switch reverses the polarity to the DSM, which moves the seat in the opposite direction. There are three power seat track motors that combine to move the seat horizontally (forward/reverse) and vertically (front up/down and rear up/down). The power recliner cannot be repaired separately. If the power recliner needs to be repaired, an entirely new front seat backrest frame must be installed.
The power seat switch is powered by battery voltage on circuit 30-AH42 (RD) and is supplied ground on circuit 31-AH42 (BK). When pressed, the power seat switch supplies that voltage and ground to a power seat track motor to move the seat. When pressed in the opposite direction, the power seat switch reverses the polarity to that same power seat track motor, which moves the seat in the opposite direction. There are two power seat track motors that combine to move the seat horizontally (forward/reverse) and vertically (front up/down).
The power seat switch is powered by battery voltage to driver seat control switch circuit 29-AH35 (OG/YE) and is supplied ground on driver circuit 91-AH35 (BN). When pressed, the power seat switch supplies the voltage and ground to the driver seat module (DSM). The DSM then supplies voltage and ground to the appropriate power seat track motor based on the inputs received from the seat control switch. When pressed in the opposite direction, the power seat switch reverses the polarity to the DSM, which moves the seat in the opposite direction. There are three power seat track motors that combine to move the seat horizontally (forward/reverse) and vertically (front up/down and rear up/down).
Each power seat track motor includes a position sensor, which is a potentiometer. The DSM supplies a shared reference voltage and ground to each position sensor. This enables the position sensor to send a variable voltage back to the DSM to indicate the position of the power seat track motor. The DSM uses this information to return the seat to a stored preprogrammed position when pressing the memory set switch or a remote transmitter. Refer to the owner's literature for additional information on programming the DSM for storing memory seat and adjustable pedal positions.
The left rear heated seat module is powered by battery voltage on circuit 30-HC21 (RD/GN) and by ignition voltage circuit 20-HC21D (PK/BK), and is supplied ground on circuit 31-HC21 (BK). The heated seat switch has a high and low setting depending on selection. The heated seat switch uses the ground on circuit 31 -HC15 (BK/YE) to provide a ground input to the heated seat module on circuit 8-HC21 (WH/GN) (high setting) or 10-HC21 (GY/OG) (low setting). The heated seat module supplies voltage to the heated seat elements in the seat cushion and the seat back.
The passenger rear heated seat module is powered by battery voltage on circuit 30-HC21 (RD/GN) and by ignition voltage circuit 20-HC21D (PK/YE), and is supplied ground on circuit 31-HC21 (BK/GN). The heated seat switch has a high and low setting depending on selection. The heated seat switch uses the ground on circuit 31-HC18 (BK/GN) to provide a ground input to the heated seat module on circuit 8-HC21A (WH/GN) (high setting) or 10-HC21A (GY/OG) (low setting). The heated seat module supplies voltage to the heated seat elements in the seat cushion and the seat back.
The heated seat switch uses circuit 8-HC21A (WH/GN) for the high setting input to the heated seat module.
The heated seat switch uses circuit 10-HC21 (GY/OG) for the low setting input to the heated seat module.
The heated seat switch uses circuit 8-HC18 (WH/GN) for the high setting input to the heated seat module.
The heated seat switch uses circuit 10-HC18 (GY/OG) for the low setting input to the heated seat module.
The power lumbar operation is incorporated into the power seat switch. The driver power seat switch is powered by battery voltage on circuit 30-AH40 (RD/GN) and is supplied ground on circuit 31-AH40 (BK/GN). When the lumbar knob of the power seat switch is pressed, voltage and ground are supplied to the power lumbar motor. When pressing the lumbar knob in the opposite direction, the power seat switch reverses the polarity to the power lumbar motor, which moves the lumbar mechanism in the opposite direction.
The power lumbar operation is incorporated into the power seat switch. The passenger power seat switch is powered by battery voltage on circuit 30-AH46 (RD) and is supplied ground on circuit 31-AH46 (BK). When the lumbar knob of the power seat switch is pressed, voltage and ground are supplied to the power lumbar motor. When pressing the lumbar knob in the opposite direction, the power seat switch reverses the polarity to the power lumbar motor, which moves the lumbar mechanism in the opposite direction.
The DSM is powered by battery voltage from circuit 29-AH35 (OG/YE) and 30-AH80 (RD) and is supplied ground on circuit 31-AH80 (BK).
The climate controlled seat module (CCSM) provides voltage on circuit 8-FA18 (WH/BK) and ground on circuit 31S-FA18 (BK/RD) to operate the climate controlled seat blower fan. The CCSM also supplies voltage on circuit 20S-FA18 (PK/OG) that is used by the climate controlled seat blower fan to provide a feedback voltage to the CCSM indicating climate controlled seat blower fan speed.
Each thermo-electric device (TED) contains an internal temperature sensor (thermistor) that is used by the climate controlled seat module (CCSM) to monitor the temperature of each (TED). Based on the temperature of a TED, the internal sensor resistance will vary the voltage on circuit 8-HC23 (WH/BK) (seat cushion TED) and circuit 8-HC16 (WH/RD) (backrest TED).
Each thermo-electric device (TED) contains an internal temperature sensor (thermistor) that is used by the climate controlled seat module (CCSM) to monitor the temperature of each (TED). Based on the temperature of a TED, the internal sensor resistance will vary the voltage on circuit 8-HC24 (WH/RD) (seat cushion TED) and circuit 8-HC19 (WH/BK) (backrest TED).
The climate controlled seat module (CCSM) controls are incorporated into the dual automatic temperature control (DATC) module. The DATC module communicates with the CCSM via the UBP bus.