Fastener Tightening Specifications
| Application | Specification |
|---|
| Metric | English |
| Adjuster Assembly Bolt | 20 N.m | 14 lb ft |
| Front Seat Mounting Bolt | 30 N.m | 22 lb ft |
| Lumbar Actuator Screws | 2 N.m | 18 lb in |
| Lumbar Adjuster Screws | 2 N.m | 18 lb in |
| Rear Seat Back Panel Screws | 2 N.m | 18 lb in |
| Recliner Screws | 20 N.m | 14 lb ft |
| Seat Back Frame Nuts | 20 N.m | 14 lb ft |
| Seat Cushion Cover Trim Screws | 2 N.m | 18 lb in |
| Seat Cushion Frame Screws | 25 N.m | 18 lb ft |
Fastener Tightening Specifications
Scheme 1
Scheme 1: Driver Seat Schematics
Scheme 2
Scheme 2: Passenger Seat Schematics
Scheme 3
Scheme 3: Power Seat Systems Component Views
| Callout | Component Name |
|---|
| 1 | Seat Belt Switch |
| 2 | Heated Seat Element - Driver Back (KA1) |
| 3 | Heated Seat Element - Driver Cushion (KA1) |
| 4 | Seat Belt Switch Connector - Driver |
| 5 | C315 |
| 6 | Heated Seat Module - Driver (KA1) |
Scheme 4
| Callout | Component Name |
|---|
| 1 | Heated Seat Element - Passenger Back (KA1) |
| 2 | Seat Belt Buckle |
| 3 | Heated Seat Module - Passenger (KA1) |
| 4 | C314 |
| 5 | Heated Seat Element - Passenger Cushion (KA1) |
Scheme 5
| Callout | Component Name |
|---|
| 1 | Instrument Panel Cluster (IPC) |
| 2 | Ambient Light Sensor |
| 3 | Hazard Switch |
| 4 | Radio |
| 5 | Remote Control Door Lock Receiver (RCDLR) (AUO) |
| 6 | Heated Seat Switch - Passenger (KA1) |
| 7 | HVAC Control Module |
| 8 | Body Control Module (BCM) |
| 9 | Heated Seat Switch - Driver (KA1) |
| 10 | Driver Information Center (DIC) Set Switch |
| 11 | Driver Information Center (DIC) Mode Switch |
| 12 | I/P Dimmer Switch |
| 13 | Fog Lamp Switch (T37) |
| 14 | Data Link Connector (DLC) |
| 15 | Rear Compartment Lid Release Switch |
| 16 | I/P Trim |
Heated Seat Switch - Driver Connector Part Information OEM: 12177194 Service: See Catalog 6-Way F Metri-Pack 150 Series (NA) Pin Wire Color Circuit No. Function A PK 1501 Driver Heated Seat High/Low Signal B GY 8 Instrument Panel Lamp Supply Voltage (1) C - - Not Used D PK 339 Run/Crank Ignition 1 Voltage E BK/WH 651 Signal Ground F L-BU 1462 Heated Seat Switch Signal
Heated Seat Switch - Passenger Connector Part Information OEM: 12177195 Service: See Catalog 6-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A PK/BK 1503 Passenger Heated Seat High/Low Signal B GY 8 Instrument Panel Lamp Supply Voltage (1) C - - Not Used D PK 339 Run/Crank Ignition 1 Voltage E BK/WH 651 Signal Ground F L-BU/BK 1505 Passenger Heated Seat Switch Signal
Heated Seat Module - Driver (KA1) Connector Part Information OEM: 15-97-5081 Service: See Catalog 8-Way M Molex (BK) Pin Wire Color Circuit No. Function 1 - - Not Used 2 - - Not Used 3 PK 1501 Driver Heated Seat High/Low signal 4 BK 1250 Ground 5 RD/WH 340 Battery Positive Voltage 6 GY 2079 Heated Seat Cushion Temperature Sensor Signal 7 OG - - 8 L-BU 1462 Heated Seat Switch Signal
Heated Seat Module - Passenger (KA1) Connector Part Information OEM: 15-97-5081 Service: See Catalog 8-Way M Molex (BK) Pin Wire Color Circuit No. Function 1 - - Not Used 2 - - Not Used 3 PK 1501 Driver Heated Seat High/Low signal 4 BK 1250 Ground 5 RD/WH 340 Battery Positive Voltage 6 GY 2079 Heated Seat Cushion Temperature Sensor Signal 7 OG - - 8 L-BU 1462 Heated Seat Switch Signal
Heated Seat Element Driver Back (KA1) Connector Part Information OEM: 12059253 Service: See Catalog 2-Way M Metri-Pack 150 Series (GN) Pin Wire Color Circuit No. Function 1 BK 2424 Driver Heated Seat Back Element Control 2 BK 2432 Driver Heated Seat Back Element Supply Voltage
Heated Seat Element Passenger Back (KA1) Connector Part Information OEM: 12059253 Service: See Catalog 2-Way M Metri-Pack 150 Series (GN) Pin Wire Color Circuit No. Function 1 BK 2424 Passenger Heated Seat Back Element Control 2 BK 2432 Passenger Heated Seat Back Element Supply Voltage
Heated Seat Element Driver Cushion (KA1) Connector Part Information OEM: 12059254 Service: See Catalog 2-Way M Metri-Pack 150 Series (GN) Pin Wire Color Circuit No. Function 1 RD 2077 Heated Seat Cushion Element Supply Voltage 2 BK 2278 Heated Seat Cushion Element Control
Heated Seat Element Passenger Cushion (KA1) Connector Part Information OEM: 12059254 Service: See Catalog 2-Way M Metri-Pack 150 Series (GN) Pin Wire Color Circuit No. Function 1 RD 2077 Heated Seat Cushion Element Supply Voltage 2 BK 2078 Heated Seat Cushion Element Control
Diagnostic Starting Point - Seats
Begin the system diagnosis by reviewing the system Description and Operation. Reviewing the Description and Operation information will help you determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the Description and Operation information will also help you determine if the condition described by the customer is normal operation. Refer to Symptoms - Seats in order to identify the correct procedure for diagnosing the system and where the procedure is located.
Symptoms - Seats
Visual/Physical Inspection
- Inspect for aftermarket devices which could affect the operation of the Seat Systems. Refer to «Checking Aftermarket Accessories»(/chevrolet/cobalt/i-2004-2010/remont/electrical-component-locations/#wiring-systems-electrical-power-management__checking-aftermarket-accessories) in Wiring Systems.
- Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
Intermittent
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom
- «Heated Seat Always On»(/chevrolet/cobalt/i-2004-2010/remont/seats/#seat-system__heated-seat-always-on)
- «Heated Seat Inoperative»(/chevrolet/cobalt/i-2004-2010/remont/seats/#seat-system__heated-seat-inoperative)
- «Heated Seat Temperature Adjustment Inoperative»(/chevrolet/cobalt/i-2004-2010/remont/seats/#seat-system__heated-seat-temperature-adjustment-inoperative)
Heated Seat Always On
| Step | Action | Yes | No |
|---|
| Schematic Reference: Driver Seat Schematics and Passenger Seat Schematics Connector End View Reference: Power Seat Systems Connector End Views |
| 1 | Did you review the Heated Seat System Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Seats |
| 2 | Verify that the Heated Seat Always ON complaint is present. Does the heated seat system operate as described in the system description and operation? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Turn ON the ignition, with the engine OFF. Do the HI or LO heated seat switch indicators remain illuminated with the switch in the OFF position? | Go to Step 7 | Go to Step 4 |
| 4 | Turn OFF the ignition. Disconnect the heated seat module. Turn ON the ignition, with the engine OFF. Probe the heated seat switch signal circuit of the heated seat module connector with a test lamp that is connected to a good ground. Does the test lamp illuminate? | Go to Step 6 | Go to Step 5 |
| 5 | Test the heated seat element supply voltage circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 8 |
| 6 | Test the heated seat switch signal circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 7 |
| 7 | Inspect for poor connections at the harness connector of the heated seat switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 9 |
| 8 | Inspect for poor connections at the harness connector of the heated seat control module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 10 |
| 9 | Replace the heated seat switch. Refer to Heated Seat Switch Replacement . Is the repair complete? | Go to Step 11 | |
| 10 | Replace the heated seat control module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Is the repair complete? | Go to Step 11 | |
| 11 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
Heated Seat Inoperative
| Step | Action | Values | Yes | No |
|---|
| Schematic Reference: Driver Seat Schematics and Passenger Seat Schematics Connector End View Reference: Power Seat Systems Connector End Views |
| 1 | Did you review the Heated Seat System Description and Operation and perform the necessary inspections? | | Go to Step 2 | Go to Symptoms - Seats |
| 2 | Verify that the Heated Seat Inoperative complaint is present. Does the heated seat system operate as described in the system description and operation? | | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Turn ON the ignition, with the engine OFF. While observing the heated seat switch temperature indicators, place the heated seat switch in the HIGH and LOW positions. Do the HI and LO temperature indicators illuminate? | | Go to Step 4 | Go to Step 17 |
| 4 | Probe the heated seat element supply voltage circuit of the heated seat module with a test lamp that is connected to a good ground. Place the heated seat switch in the HIGH heat position. Does the test lamp illuminate? | | Go to Step 11 | Go to Step 5 |
| 5 | Turn OFF the ignition. Disconnect the heated seat module. Turn ON the ignition, with the engine OFF. Connect a test lamp from the battery positive voltage circuit of the heated seat module connector to a good ground. Does the test lamp illuminate? | | Go to Step 6 | Go to Step 24 |
| 6 | Connect a test lamp between the battery positive voltage circuit of the heated seat module connector and the ground circuit of the module connector. Does the test lamp illuminate? | | Go to Step 7 | Go to Step 25 |
| 7 | Connect a test lamp from the heated seat switch signal circuit of the heated seat module connector to a good ground. Place the heated seat switch in the HIGH heat position. Does the test lamp illuminate? | | Go to Step 8 | Go to Step 16 |
| 8 | Turn OFF the ignition. Place the heated seat switch in the LOW heat position. Measure the resistance between the heated seat switch signal circuit of the heated seat module connector and the heated seat high/low signal circuit of the module connector. Dose the resistance measure near the specified value? | 2,500 ohms | Go to Step 9 | Go to Step 13 |
| 9 | Place the heated seat switch in the HIGH heat position. Measure the resistance between the heated seat switch signal circuit of the heated seat module connector and the heated seat high/low signal circuit of the module connector. Dose the resistance measure near the specified value? | 200 ohms | Go to Step 10 | Go to Step 20 |
| 10 | IMPORTANT: If the resistance is measured with the seat still warm, the resistance may very outside of the specified range since the thermistor resistance varies with temperature. Measure the resistance between the temperature sensor signal circuit of the heated seat module connector and the ground circuit of the module connector.Does the resistance measure within the specified range? | 7,000-11,000 ohms | Go to Step 23 | Go to Step 14 |
| 11 | Disconnect the heated seat module harness connector. Measure the resistance between the heated seat element supply voltage circuit of the heated seat module and the ground circuit of the heated seat module. Does the resistance measure less than the specified value? | 5 ohms | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 12 |
| 12 | Disconnect the seat back heating element connector. Measure the resistance across the back heating element connector. Does the resistance measure less than the specified value? | 5 ohms | Go to Step 19 | Go to Step 22 |
| 13 | Test the heated seat high/low signal circuit between the heated seat switch and the heated seat module for the following conditions: An open A short to ground A short to voltage Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | | Go to Step 30 | Go to Step 20 |
| 14 | Test the ground circuit of the heated seat temperature sensor for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | | Go to Step 30 | Go to Step 15 |
| 15 | Test the signal circuit of the heated seat temperature sensor for the following conditions: An open A short to ground A short to voltage Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | | Go to Step 30 | Go to Step 21 |
| 16 | Test the heated seat switch signal circuit between the heated seat switch and the heated seat module for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | | Go to Step 30 | Go to Step 20 |
| 17 | Test the battery positive voltage circuit of the heated seat switch for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | | Go to Step 30 | Go to Step 18 |
| 18 | Test the ground circuit heated seat switch for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | | Go to Step 30 | Go to Step 20 |
| 19 | Test the ground circuit of the seat heating elements for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | | Go to Step 30 | Go to Step 21 |
| 20 | Inspect for poor connections at the harness connector of the heated seat switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | | Go to Step 30 | Go to Step 26 |
| 21 | Inspect for poor connections at the harness connector of the heated seat cushion heating element/temperature sensor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | | Go to Step 30 | Go to Step 27 |
| 22 | Inspect for poor connections at the harness connector of the heated seat back heating element. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | | Go to Step 30 | Go to Step 28 |
| 23 | Inspect for poor connections at the harness connector of the heated seat module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | | Go to Step 30 | Go to Step 29 |
| 24 | Repair the open or short to ground in the battery positive voltage circuit of the heated seat module. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Did you complete the repair? | | Go to Step 30 | |
| 25 | Repair the open in the ground circuit of the heated seat module. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Did you complete the repair? | | Go to Step 30 | |
| 26 | Replace the heated seat switch. Refer to Heated Seat Switch Replacement . Is the repair complete? | | Go to Step 30 | |
| 27 | Replace the seat cushion heater element/temperature sensor. Refer to Seat Cushion Heater Element Replacement - Front . Is the repair complete? | | Go to Step 30 | |
| 28 | Replace the seat back heater element. Refer to Seat Back Heater Element Replacement - Front . Is the repair complete? | | Go to Step 30 | |
| 29 | Replace the heated seat control module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Is the repair complete? | | Go to Step 30 | |
| 30 | Operate the system in order to verify the repair. Did you correct the condition? | | System OK | Go to Step 2 |
| IMPORTANT |
|---|
| If the resistance is measured with the seat still warm, the resistance may very outside of the specified range since the thermistor resistance varies with temperature. |
Heated Seat Temperature Adjustment Inoperative
| Step | Action | Values | Yes | No |
|---|
| Schematic Reference: Driver Seat Schematics and Passenger Seat Schematics Connector End View Reference: Power Seat Systems Connector End Views |
| 1 | Did you review the heated seat operation and perform the necessary inspection? | | Go to Step 2 | Go to Symptoms - Seats |
| 2 | Verify that the Heated Seat Temperature Adjustment Inoperative complaint is present. Does the Heated Seat System operate as described in the system description and operation? | | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 | Turn OFF the ignition. Disconnect the heated seat module harness connector. Place the heated seat switch in the HIGH position. Measure the resistance between the heated seat switch signal circuit of the heated seat module connector and the heated seat high/low signal circuit of the heated seat module connector. Does the resistance measure near the specified value? | 200 ohms | Go to Step 4 | Go to Step 5 |
| 4 | Place the heated seat switch in the LOW position. Measure the resistance between the heated seat switch signal circuit of the heated seat module connector and the heated seat high/low signal circuit of the heated seat module connector. Does the resistance measure near the specified value? | 2,500 ohms | Go to Step 7 | Go to Step 6 |
| 5 | Turn ON the ignition, with the engine OFF. Place the heated seat switch in the OFF position. Test the heated seat switch signal circuit between the heated seat switch and the heated seat module for a short to battery voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | | Go to Step 10 | Go to Step 6 |
| 6 | Inspect for poor connections at the harness connector of the heated seat switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | | Go to Step 10 | Go to Step 8 |
| 7 | Inspect for poor connections at the harness connector of the heated seat module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | | Go to Step 10 | Go to Step 9 |
| 8 | Replace the heated seat switch. Refer to Heated Seat Switch Replacement . Did you complete the replacement? | | Go to Step 10 | |
| 9 | Replace the heated seat module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | | Go to Step 10 | |
| 10 | Operate the system in order to verify the repair. Did you correct the condition? | | System OK | Go to Step 2 |
Heated Seat Temperature Adjustment Inoperative
Seat - Manual Adjuster Does Not Unlock
| Condition | Action |
|---|
| IMPORTANT: Replace all seat adjusters as an assembly Replace both sides at the same time. |
| The adjuster latch is binding | Inspect the seat adjuster handle for damage. Replace the handle if necessary. Replace the adjuster. |
| IMPORTANT |
|---|
| Replace all seat adjusters as an assembly Replace both sides at the same time. |
Seat - Manual Adjuster Does Not Unlock
Seat - Manual Adjuster Locks Between Lock Positions
| Condition | Action |
|---|
| IMPORTANT: Replace all seat adjusters as an assembly Replace both sides at the same time. |
| The right adjuster is rearward of the left adjuster. The right adjuster is forward of the left adjuster. | Visually inspect the installed seat to verify that the seat back is parallel to the seat cushion. Move the seat back until a parallel condition is achieved. |
| The seat back will not remain parallel. | On non-fold flat seats, replace the seat back frame. |
| IMPORTANT |
|---|
| Replace all seat adjusters as an assembly Replace both sides at the same time. |
Seat - Manual Adjuster Locks Between Lock Positions
Seat - Manual Adjuster Does Not Lock
| Condition | Action |
|---|
| IMPORTANT: Replace all seat adjusters as an assembly Replace both sides at the same time. |
| The seat adjusters were not parallel during installation. | Loosen the rear seat bolts. Position the seat fully forward. Tighten the bolts. Refer to Fastener Tightening Specifications . |
| IMPORTANT |
|---|
| Replace all seat adjusters as an assembly Replace both sides at the same time. |
Seat - Manual Adjuster Does Not Lock
Seat - Hard to Move Forward and Rearward
| Condition | Action |
|---|
| IMPORTANT: Replace all seat adjusters as an assembly Replace both sides at the same time. |
| The adjusters are not in parallel alignment with each other. | Loosen the floor pan attaching bolts. Position the seat fully forward. Tighten the bolts. Refer to Fastener Tightening Specifications . |
| IMPORTANT |
|---|
| Replace all seat adjusters as an assembly Replace both sides at the same time. |
Seat - Hard to Move Forward and Rearward
Seats - Adjuster Track Locks Ahead of Other Track
| Condition | Action |
|---|
| IMPORTANT: Replace all seat adjusters as an assembly Replace both sides at the same time. |
| The adjusters are out of time. | Remove and reinstall the front bucket seat. Refer to Seat Replacement - Front Bucket . |
| IMPORTANT |
|---|
| Replace all seat adjusters as an assembly Replace both sides at the same time. |
Seats - Adjuster Track Locks Ahead of Other Track
Scheme 6
Scheme 6: Seat Replacement - Front Bucket
| Callout | Component Name |
|---|
| NOTE: Refer to Fastener Notice in Cautions and Notices. Fastener Tightening Specifications: Refer to Fastener Tightening Specifications . |
| 1 | Bolt, Front Seat Assembly Tip: Remove bolt trim cover. Remove the bolt. Disconnect the electrical connectors. Tilt seat forward to release front of the seat tracks. Tighten: 30 N.m (22 lb ft) |
Seat Replacement - Front Bucket
Scheme 7
Scheme 7: Seat Cushion Frame Replacement - Front
Seat Cushion Frame Replacement - Front
Scheme 8
Scheme 8: Seat Cushion Outer Trim Panel Replacement - Front Seat
| Callout | Component Name |
|---|
| NOTE: Refer to Fastener Notice in Cautions and Notices. Fastener Tightening Specifications: Refer to Fastener Tightening Specifications . |
| 1 | Screw, Outer Seat Cushion Cover Assembly (Qty: 3) Tighten: 2 N.m (18 lb in) |
| 2 | Cover Assembly, Outer Seat Cushion |
Seat Cushion Outer Trim Panel Replacement - Front Seat
Scheme 9
Scheme 9: Seat Cushion Inner Trim Panel Replacement
| Callout | Component Name |
|---|
| NOTE: Refer to Fastener Notice in Cautions and Notices. Fastener Tightening Specifications: Refer to Fastener Tightening Specifications . |
| 1 | Screw, Inner Seat Cushion Cover Assembly (Qty: 2) Tighten: Tighten to 2 N.m (18 lb in) |
| 2 | Cover Assembly, Inner Seat Cushion |
Seat Cushion Inner Trim Panel Replacement
Scheme 10
Scheme 10: Seat Cushion Cover and Pad Replacement - Front
Seat Cushion Cover and Pad Replacement - Front
Scheme 11
Scheme 11: Seat Back Cover and Pad Replacement - Front
Seat Back Cover and Pad Replacement - Front
Scheme 12
Scheme 12: Seat Back Frame Replacement - Front
| Callout | Component Name |
|---|
| NOTE: Refer to Fastener Notice in Cautions and Notices. Fastener Tightening Specifications: Refer to Fastener Tightening Specifications . Preliminary Procedures Remove the front seat. Refer to Seat Replacement - Front Bucket . Remove the cushion frame. Refer to Seat Cushion Frame Replacement - Front . Remove the seat back cover and pad assembly. Refer to Seat Back Cover and Pad Replacement - Front . Adjust the seat back position until the notches in the seat back line up with the springs. Slide the spring onto the notches. Ensure that the springs are completely engaged into the notches. adjust the seat back forward to allow the springs to be lifted from the impact tube. |
| 1 | Nut, Seat Back Frame (Qty: 6) Tighten: 20 N.m (14 lb ft) |
| 2 | Frame Assembly, Seat Back Tip: Separate the seat adjuster tracks. |
Seat Back Frame Replacement - Front
Scheme 13
Scheme 13: Seat Back Recliner Handle Replacement - Front
Seat Back Recliner Handle Replacement - Front
Scheme 14
Scheme 14: Lumbar Replacement - Front Seat
Lumbar Replacement - Front Seat
Scheme 15
Scheme 15: Lumbar Actuator Replacement - Manual
Lumbar Actuator Replacement - Manual
Scheme 16
Scheme 16: Seat Adjuster Replacement - Front
Seat Adjuster Replacement - Front
Scheme 17
Scheme 17: Heated Seat Switch Replacement
Heated Seat Switch Replacement
Scheme 18
Scheme 18: Seat Back Heater Element Replacement - Front
Seat Back Heater Element Replacement - Front
Scheme 19
Scheme 19: Seat Cushion Heater Element Replacement - Front
Seat Cushion Heater Element Replacement - Front
Scheme 20
Scheme 20: Heated Seat Control Module Replacement - Front
Heated Seat Control Module Replacement - Front
Scheme 21
Scheme 21: Head Restraint Replacement - Front Seat
| Callout | Component Name |
|---|
| NOTE: Refer to Fastener Notice in Cautions and Notices. Fastener Tightening Specifications: Refer to Fastener Tightening Specifications . |
| 1 | Restraint, Seat Head Tip: Use a small tool to release the head restraint from the guides. |
Head Restraint Replacement - Front Seat
Scheme 22
Scheme 22: Head Restraint Guide Replacement - Front Seat
Head Restraint Guide Replacement - Front Seat
Scheme 23
Scheme 23: Seat Belt Guide Replacement - Front
Seat Belt Guide Replacement - Front
Scheme 24
Scheme 24: Seat Cushion Replacement - Rear
Seat Cushion Replacement - Rear
Scheme 25
Scheme 25: Seat Cushion Cover and Pad Replacement - Rear
Seat Cushion Cover and Pad Replacement - Rear
Scheme 26
Scheme 26: Seat Back Replacement - Rear Split Folding
| Callout | Component Name |
|---|
| NOTE: Refer To Fastener Notice In Cautions And Notices. Fastener Tightening Specifications: Refer To Fastener Tightening Specifications . |
| 1 | Bolt, Rear Seat Back Tighten: 9 N.m (80 lb ft) |
| 2 | Cushion Assembly, Rear Seat Back Tip: Slide Inboard Side Of The Seat Back Into The Pivot. Align Outboard Side And Push Down To Engage The Hinge Assembly. |
Seat Back Replacement - Rear Split Folding
Scheme 27
Scheme 27: Seat Back Cover, Pad & Back Panel Replacement - Rear Split Folding Seat
Seat Back Cover, Pad, and Back Panel Replacement - Rear Split Folding Seat
Manual Seats Description
All coupe and sedan body styles are equipped with bucket seats. The bucket seats contain a manual recliner system. Manually release the seat back as desired in order to provide easier access to the rear seat.
Both of the recliner mechanisms on the sedan, and the driver mechanism on the coupe, are part of the seat back frame. The coupe passenger bucket seat folds flat. The fold flat recliner mechanism consists of an inboard and an outboard recliner, mounted between the seat back and both sides of the adjuster tracks.
The manually operated front adjusters provide forward and rearward movement of the seat. Actuating the seat control handle unlocks the seat adjusters. This permits travel of the seat. The seat locks into place under the following conditions
- The seat is in the desired position.
- The seat control handle is released.
Some driver seats may have a 4-way manual seat adjustment. To operate the height adjustment, ratchet the front lever on the outboard side of the driver seat. Ratchet up or down to raise or lower the seat.
Heated Seats Description and Operation
The heated seat system consists of the following components
- Heated Seat Switch
- Heated Seat Control Module
- Seat Cushion Heater Element
- Seat Back Heater Element
- Temperature Sensor
- DIC/HVAC Fuse 10A
- HSEAT/LUM Fuse 15A
Heated Seat Switch
The heated seat switch controls the high an low temperature settings through a rocker switch that is located in the center console. Battery positive voltage is supplied to the switch through the IGN 3 voltage circuit and the DIC/HVAC Fuse located in the I/P fuse block. The heated seat system will operate only with the ignition in the ON position.
Heated Seat Module
The heated seat module controls the flow of battery positive voltage used to heat the seat heating elements. Battery positive voltage is supplied at all times to the heated seat module through the battery positive circuit and the H SET/LUM Fuse located in the I/P fuse block. The heated seat module and the seat heating elements are grounded through the module ground circuit to G301.
Heated Seat Operation
When the heated seat switch is placed in the high or low temperature position, battery positive voltage is applied through the heated seat switch signal circuit to the heated seat module. In response to this signal, the heated seat module closes it's contacts and applies battery positive voltage through the heated seat element supply voltage to the heating elements. With the heated seat switch in the high position, battery positive voltage is applied through a 310 ohm resister in the switch and the heated seat high/low signal circuit to the heated seat module. In response to this signal, the module sets the temperature to high heat. When the heated seat switch is placed in the low position, battery positive voltage is applied through a 200 ohm resister in the switch and the heated seat high/low signal circuit to the module. In response to this signal, the module sets the temperature to low heat.
Temperature Regulation
The heated seat system is designed to warm the seat cushion and seat back to approximately 44°C (111.2°F) when in the high heat mode, or 37°C (98.6°F) when in the low heat mode. The heated seat module monitors the seat temperature through the temperature sensor signal circuit and the temperature sensor (thermistor) that is located in the seat cushion. The temperature sensor is a variable resistor, it's resistance changes as the temperature of the seat changes. When the temperature sensor resistance indicates to the heated seat module that the seat cushion has reached the desired temperature, the module opens its contacts to remove voltage from the heating elements. The heated seat module will then cycle the contacts open and closed to maintain the desired temperature.
