Fixed and Moveable Window System: Other Chevrolet Sonic I

Reference Information

Schematic Reference

Defogger Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Rear Window Defogger Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-542498-S42729642072013041600000)
2. «Connector Repairs»(ref-542498-S10348064002013041600000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-542498-S27468711012013041600000)
4. «Wiring Repairs»(ref-542498-S06256207262013041600000)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Engine Running.
2. Verify the E18 Rear Defogger Grid turns ON and OFF when pressing the rear window defogger switch. If the E18 Rear Defogger Grid does not turn ON or OFF Refer to «Circuit/System Testing»(ref-542512-S35770072332013041600000) If the E18 Rear Defogger Grid turns ON and OFF
3. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

1. «Relay Replacement (Within an Electrical Center)»(ref-542513-S01448277202013041600000) , «Relay Replacement (Attached to Wire Harness)»(ref-542513-S06096887402013041600000)
2. «Control Module References»(ref-542499-S01936129122013041600000) for the HVAC control module replacement, programming and setup

Schematic Reference

Moveable Window Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Power Windows Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-542498-S42729642072013041600000)
2. «Connector Repairs»(ref-542498-S10348064002013041600000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-542498-S27468711012013041600000)
4. «Wiring Repairs»(ref-542498-S06256207262013041600000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify the scan tool parameters listed below change when pressing and pulling the driver window control switch on the driver window master control: Driver Window Main Control Down Switch - Inactive and Active Driver Window Main Control Up Switch - Inactive and Active Driver Window Main Control Express Switch - Inactive and Active If any parameter does not change Refer to «Circuit/System Testing»(ref-542512-S12059609372013041600000) If all the parameters change
3. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Front Side Door Window Regulator Motor Replacement»(ref-542512-S19569444082013041600000)
2. «Front Side Door Window Switch Replacement (Left Side)»(ref-542512-S10333549992013041600000) , «Front Side Door Window Switch Replacement (Right Side)»(ref-542512-S14092122842013041600000)

Schematic Reference

Moveable Window Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Power Windows Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-542498-S42729642072013041600000)
2. «Connector Repairs»(ref-542498-S10348064002013041600000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-542498-S27468711012013041600000)
4. «Wiring Repairs»(ref-542498-S06256207262013041600000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON
2. Verify the driver window functions while commanding the Driver Window Motor Up and Down with a scan tool. If the Up and Down does not work Replace the M74D Window Motor - Driver. If the UP and DOWN works
3. Verify the driver window performs the Express Up and Express Down functions with the driver window switch. If the driver window does not Express Up and Express Down Normalize the driver window motor, refer to «Window Motor Programming - Express Function»(ref-542512-S22925888292013041600000) . If the driver window performs the Express Up and Express Down functions
4. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

Front Side Door Window Regulator Motor Replacement

Symptoms - Fixed and Moveable Windows

Important Preliminary Checks Before Starting

1. Perform the «Diagnostic System Check - Vehicle»(ref-542476-S03610919532013041600000) before using the symptom tables in order to verify that all of the following are true: There are no DTCs set. The control modules can communicate via the serial data link.
2. Review the power window system operation or rear window defogger system operation in order to familiarize yourself with the system functions. Refer to the following: «Rear Window Defogger Description and Operation»(ref-542512-S21607931162013041600000) «Power Windows Description and Operation»(ref-542512-S40373977042013041600000)

Intermittent

Note. Inspect for proper installation of electrical components if an intermittent condition exists. Inspect for aftermarket theft deterrent devices, lights, and cellular phones. Ensure that no aftermarket equipment is connected to the class 2 circuit. If you can not locate an intermittent condition, a cellular phone signal may cause the condition. Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections . The problem may or may not turn ON the SERVICE VEHICLE SOON indicator or store a DTC. Do not use the symptom tables to diagnose intermittent conditions. The malfunction must be present in order to locate the problem.

Poor electrical connections or wiring cause most intermittent conditions. Perform a careful visual/physical check for the following conditions

1. Poor mating of the connector halves or a terminal not fully seated in the connector body
2. An improperly formed or damaged terminal
3. Reform or replace connector terminals in the problem circuit in order to ensure proper contact tension.
4. Poor terminal to wire connection requires removing the terminal from the connector body in order to perform the check.

Use a scan tool in order to help detect intermittent conditions. The scan tool has several features that can be used to locate an intermittent condition. The snapshot feature can capture and store data parameters within the scan tool when the malfunction occurs. This information can then be reviewed in order to see what caused the malfunction.

Schematic Reference

Defogger Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Rear Window Defogger Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-542498-S42729642072013041600000)
2. «Connector Repairs»(ref-542498-S10348064002013041600000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-542498-S27468711012013041600000)
4. «Wiring Repairs»(ref-542498-S06256207262013041600000)

Scan Tool Reference

Control Module References for scan tool information

1. Engine running.
2. Verify the scan tool Rear Defogger Switch parameter changes between Active and Inactive when pressing the rear window defogger switch. If the parameter does not change between Active and Inactive Replace the K33 HVAC control module. If the parameter changes between Active and Inactive
3. Verify the E18 Rear Defogger Grid turns ON and OFF when pressing the rear window defogger switch. If the E18 Rear Defogger Grid does not turn ON and OFF Refer to «Circuit/System Testing»(ref-542512-S03019342682013041600000) If the E18 Rear Defogger Grid turns ON and OFF
4. Verify the rear window defog indicator turns ON and OFF when commanding the Illuminate All Indicators On and Off with a scan tool. If the rear window defog indicator does not turn ON and OFF Replace the K33 HVAC control module. If the rear window defog indicator turns ON and OFF
5. All OK.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Relay Replacement (Within an Electrical Center)»(ref-542513-S01448277202013041600000) , «Relay Replacement (Attached to Wire Harness)»(ref-542513-S06096887402013041600000)
2. «Rear Window Replacement»(ref-542512-S17878796802013041600000)
3. «Liftgate Window Replacement»(ref-542512-S25582177772013041600000)
4. «Control Module References»(ref-542499-S01936129122013041600000) for HVAC Control Module replacement, programming and setup

Schematic Reference

Moveable Window Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Power Windows Description and Operation

Electrical Information Reference

1. «Circuit Testing»(ref-542498-S42729642072013041600000)
2. «Connector Repairs»(ref-542498-S10348064002013041600000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-542498-S27468711012013041600000)
4. «Wiring Repairs»(ref-542498-S06256207262013041600000)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON.
2. Verify the M74D Window Motor-Driver functions while commanding the Driver Window Motor Up and Down with a scan tool. If the M74D Window Motor-Driver does not move UP and DOWN as commanded Refer to «Circuit/System Testing - Driver Window Motor Malfunction»(ref-542512-S11401724652013041600000) . If the M74D Window Motor-Driver moves UP and DOWN as commanded
3. Verify the M74D Window Motor-Driver moves while commanding the window UP and DOWN with the S79D Window Switch-Driver. If the M74D Window Motor-Driver does not move UP and DOWN as commanded Refer to «Circuit/System Testing - Driver Window Switch Malfunction»(ref-542512-S11401724652013041600000) . If the M74D Window Motor-Driver moves UP and DOWN as commanded
4. Verify the M74D Window Motor-Driver performs the express UP and express DOWN functions with the S79D Window Switch-Driver. If the driver window does not express UP or express DOWN Normalize the M74D Window Motor-Driver, refer to «Window Motor Programming - Express Function»(ref-542512-S22925888292013041600000) . Verify the M74D Window Motor-Driver performs the express UP and express DOWN functions with the S79D Window Switch-Driver If the M74D Window Motor-Driver does not express UP or express DOWN Refer to «Circuit/System Testing - Driver Window Switch Malfunction»(ref-542512-S11401724652013041600000) . If the M74D Window Motor-Driver performs the express UP and express DOWN functions
5. Verify the M74P Window Motor-Passenger performs the UP and DOWN functions at both the S79D Window Switch-Driver and S79P Window Switch-Passenger. If the M74P Window Motor-Passenger is inoperative from both the S79D Window Switch-Driver and S79P Window Switch-Passenger Refer to «Circuit/System Testing - Passenger Window Inoperative From Both Switches»(ref-542512-S11401724652013041600000) . If the M74P Window Motor-Passenger is inoperative from the S79P Window Switch-Passenger only Refer to «Circuit/System Testing - Passenger Window Inoperative From A Single Switch»(ref-542512-S11401724652013041600000) . If the M74P Window Motor-Passenger is inoperative from the S79D Window Switch-Driver only Refer to «Circuit/System Testing - Passenger Window Inoperative From A Single Switch»(ref-542512-S11401724652013041600000) . If the M74P Window Motor-Passenger performs the UP and DOWN functions at both S79D Window Switch-Driver and S79P Window Switch-Passenger
6. Verify the M74LR Window Motor-Left Rear and M74RR Window Motor-Right Rear performs the UP and DOWN functions at both the S79D Window Switch-Driver and each of the S79 Window Switch-Rear. If a M74 Window Motor-Rear is inoperative from both the S79D Window Switch-Driver and S79 Window Switch-Rear Refer to «Circuit/System Testing - Rear Window Inoperative From Both Switches»(ref-542512-S11401724652013041600000) If a M74 Window Motor-Rear is inoperative from the S79 Window Switch-Rear only Refer to «Circuit/System Testing - Rear Window Switch Inoperative»(ref-542512-S11401724652013041600000) If a M74 Window Motor-Rear is inoperative from the S79D Window Switch-Driver only Test or replace the S79D Window Switch-Driver. If the M74 Window Motor-Rear performs the UP and DOWN functions at both the S79D Window Switch-Driver and the S79 Window Switch-Rear
7. Lock out the rear window switches by pressing the lockout switch on the S79D Window Switch-Driver.
8. Verify the M74LR Window Motor-Left Rear and M74RR Window Motor-Right Rear is inoperative at both of the S79 Window Switch-Rear. If both M74 Window Motor-Rear continue to function from the S79 Window Switch-Rear Refer to «Circuit/System Testing - Rear Window Lockout Inoperative»(ref-542512-S11401724652013041600000) If both M74 Window Motor-Rear are inoperative from the S79 Window Switch-Rear
9. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

1. «Front Side Door Window Regulator Motor Replacement»(ref-542512-S19569444082013041600000)
2. «Rear Side Door Window Switch Replacement»(ref-542512-S04689683692013041600000)
3. «Rear Side Door Window Regulator Replacement (Sedan)»(ref-542512-S25674465312013041600000) , «Rear Side Door Window Regulator Replacement (Hatchback)»(ref-542512-S38844043762013041600000)
4. «Front Side Door Window Switch Replacement (Left Side)»(ref-542512-S10333549992013041600000) , «Front Side Door Window Switch Replacement (Right Side)»(ref-542512-S14092122842013041600000)

Window Motor Normalized Procedure

A window motor that has not been normalized will no longer perform the express up and express down functions, this may occur during the following conditions

1. When a window motor has been disconnected
2. When a door harness has been disconnected
3. When the battery has been disconnected or replaced

Note. When DTC B3205 4B is set, the following warnings will be displayed on the driver information center: Open, then Close Driver Window These warnings will clear once the window has been "Normalized" and the DTC will clear.

To normalize the window motor, follow these steps

1. Ignition ON.
2. Starting with the window completely UP, press and hold the power window switch until the window is fully open and continue holding the switch down for approximately 5 seconds after the window is completely open.
3. Pull the power window switch up until the window is fully closed and continue holding the switch up for approximately 5 seconds after the window is completely closed.

The window should now be normalized and the window should perform the express up and express down functions.

Window Motor Relearn Procedure

A relearn procedure may need to be performed for any Local Interconnect Network (LIN) window motor for the following conditions

1. When the window glass is out of alignment
2. When the window glass has been replaced
3. When the door has been replaced
4. When the window regulator has been replaced

Note. Prior to performing the relearn procedure the vehicle must have all 4 wheels properly inflated and mounted, the vehicle must be sitting on a level surface and all doors must be completely closed.

To relearn the window motor, follow these steps

1. Ignition ON.
2. With a scan tool, select Module Diagnosis, Body Control Module, Configuration/Reset Functions and then select the appropriate Clear Window Learn Values for the window motor requiring the relearn procedure.
3. After the learn procedure, exit the scan tool learn procedure completely, the power window cannot be normalized and will not function until you exit the program.
4. Starting with the window completely UP, press and hold the power window switch until the window is fully open and continue holding the switch down for approximately 5 seconds after the window is completely open.
5. Pull the power window switch up until the window is fully closed and continue holding the switch up for approximately 5 seconds after the window is completely closed.

The window is now reprogrammed.

Scheme 14

Front Side Door Window Regulator Motor Replacement

Scheme 15

Rear Side Door Window Regulator Replacement (Sedan)

Scheme 16

Rear Side Door Window Regulator Replacement (Hatchback)

Scheme 17

Rear Side Door Window Regulator Motor Replacement

Scheme 18

Front Side Door Window Regulator Handle Replacement

Scheme 19

Rear Side Door Window Regulator Handle Replacement

Scheme 20

Front Side Door Window Rear Guide Replacement

Scheme 21

Rear Side Door Window Rear Guide Replacement

Scheme 22

Front Side Door Window Outer Sealing Strip Replacement

Scheme 23

Rear Side Door Window Outer Sealing Strip Replacement (Sedan)

Scheme 24

Rear Side Door Window Outer Sealing Strip Replacement (Hatchback)

Scheme 25

Front Side Door Window Weatherstrip Replacement

Scheme 26

Rear Side Door Window Weatherstrip Replacement (Hatchback)

Power Window System Components

The power window system consists of the following components

1. Driver window switch
2. Front passenger window switch
3. Left rear window switch
4. Right rear window switch
5. Window regulator motors in each of the doors
6. 30 amp fuse
7. 25 amp fuse

Power Window System Controls

The power window system can be controlled by a power window up or down switch activation.

Driver Express Up and Express Down Power Window Motor (If Equipped)

The driver door may be equipped with a smart window motor that will detect excessive resistance while performing the express up function and automatically reverse direction to prevent injury to any occupants that may become trapped between the closing window and the door frame. The automatic reverse safety feature can be overridden by pulling and holding the window switch.

The logic circuit within the window motor monitors the up, down and express signal circuits which are normally equal to B+ voltage. When a switch is used on the driver window switch, the contacts close causing a voltage drop within the appropriate signal circuit. The driver window motor will detect the voltage drop and will command the window to move in the direction requested.

Lockout Switch Feature

The driver window switch contains a rear window lockout switch which disconnects the battery positive voltage supply to the remote rear passenger door window switches, disabling them. The remote front passenger door window switch cannot be locked out.

Rear Window Defogger System Components

The rear window defogger system consist of the following components

1. The HVAC control module
2. The body control module (BCM)
3. The rear defogger relay
4. The rear window grid