Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
Cobra Forums
The Terminator
Terminator Talk
Window Switch problem(no blown fuses) NEED HELP ASAP
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="hotcobra03" data-source="post: 14081257" data-attributes="member: 53096"><p>Principles of Operation </p><p></p><p>Power Window Control </p><p></p><p>NOTE: Battery power and ground must be removed before disconnecting the GEM connectors to avoid setting false DTCs. </p><p></p><p>The driver power window one-touch down operation is controlled by the generic electronic module (GEM). This feature functions only when the ignition switch is in the RUN or ACCY positions. The GEM determines ignition switch position by monitoring the key-in ignition, RUN/ACCY and RUN/START circuits. The one-touch down operation is requested of the GEM by momentarily pressing the driver window regulator control switch DOWN for 62 ms to 320 ms. The GEM uses the initial voltage input from the down switch to begin the one-touch down operation. If the voltage input was less than 320 ms, the GEM will maintain the voltage supply to the motor down circuit. The GEM will maintain the operation until: </p><p></p><p>seven seconds expires. </p><p>motor stall is detected by monitoring the current draw. </p><p>a voltage input is received by the GEM on either the up or down switch circuits. </p><p>The ground for one-touch down operation does not pass through the GEM. The ground is supplied through the driver window regulator control switch as with normal operation. If the GEM continues to see voltage on the down circuit for more than 320 ms after initial activation the GEM will not effect operation. The down circuit through the GEM is a direct connection to the motor in its normal state. This allows the driver window regulator control switch to control the motor for normal operation. </p><p></p><p>The passenger window motors are hardwired directly to the window regulator control switches. </p><p></p><p> </p><p>Inspection and Verification </p><p></p><p>Verify the customer concern by operating the system. </p><p>Visually inspect for obvious signs of mechanical or electrical damage. </p><p></p><p></p><p>Visual Inspection Chart Mechanical Electrical </p><p>Power window regulator </p><p>Window run weatherstrip </p><p>Door window glass </p><p> Central junction box (CJB) circuit breaker 43 (20A), fuse 39 (5A) or 23 (15A) </p><p>Battery junction box (BJB) fuse HTD BL (40A) </p><p>Generic electronic module (GEM) </p><p>Window regulator control switch </p><p>Window regulator motor </p><p>Instrument cluster module (ICM) </p><p>Heated rear window relay </p><p>Rear window defrost switch </p><p>Heated rear window grid </p><p>Circuitry </p><p> </p><p></p><p></p><p>If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step. </p><p>If the diagnostic tool does not communicate with the vehicle, refer to the diagnostic tool manual. </p><p>Carry out the DATA LINK DIAGNOSTIC TEST. If the diagnostic tool responds with: </p><p>CKT 914, CKT 915 or CKT70 - ALL ECUS NO RESP/NOT EQUIP, refer to Section 418-00 . </p><p>NO RESP/NOT EQUIP for the generic electronic module (GEM), go to Pinpoint Test A. </p><p>NO RESP/NOT EQUIP for the instrument cluster module (ICM), refer to Section 413-01 . </p><p>System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the GEM or ICM. </p><p>If the GEM or ICM DTCs retrieved are related to the concern, go to the GEM or ICM Diagnostic Trouble Code (DTC) Index. </p><p>If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics.</p></blockquote><p></p>
[QUOTE="hotcobra03, post: 14081257, member: 53096"] Principles of Operation Power Window Control NOTE: Battery power and ground must be removed before disconnecting the GEM connectors to avoid setting false DTCs. The driver power window one-touch down operation is controlled by the generic electronic module (GEM). This feature functions only when the ignition switch is in the RUN or ACCY positions. The GEM determines ignition switch position by monitoring the key-in ignition, RUN/ACCY and RUN/START circuits. The one-touch down operation is requested of the GEM by momentarily pressing the driver window regulator control switch DOWN for 62 ms to 320 ms. The GEM uses the initial voltage input from the down switch to begin the one-touch down operation. If the voltage input was less than 320 ms, the GEM will maintain the voltage supply to the motor down circuit. The GEM will maintain the operation until: seven seconds expires. motor stall is detected by monitoring the current draw. a voltage input is received by the GEM on either the up or down switch circuits. The ground for one-touch down operation does not pass through the GEM. The ground is supplied through the driver window regulator control switch as with normal operation. If the GEM continues to see voltage on the down circuit for more than 320 ms after initial activation the GEM will not effect operation. The down circuit through the GEM is a direct connection to the motor in its normal state. This allows the driver window regulator control switch to control the motor for normal operation. The passenger window motors are hardwired directly to the window regulator control switches. Inspection and Verification Verify the customer concern by operating the system. Visually inspect for obvious signs of mechanical or electrical damage. Visual Inspection Chart Mechanical Electrical Power window regulator Window run weatherstrip Door window glass Central junction box (CJB) circuit breaker 43 (20A), fuse 39 (5A) or 23 (15A) Battery junction box (BJB) fuse HTD BL (40A) Generic electronic module (GEM) Window regulator control switch Window regulator motor Instrument cluster module (ICM) Heated rear window relay Rear window defrost switch Heated rear window grid Circuitry If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step. If the diagnostic tool does not communicate with the vehicle, refer to the diagnostic tool manual. Carry out the DATA LINK DIAGNOSTIC TEST. If the diagnostic tool responds with: CKT 914, CKT 915 or CKT70 - ALL ECUS NO RESP/NOT EQUIP, refer to Section 418-00 . NO RESP/NOT EQUIP for the generic electronic module (GEM), go to Pinpoint Test A. NO RESP/NOT EQUIP for the instrument cluster module (ICM), refer to Section 413-01 . System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the GEM or ICM. If the GEM or ICM DTCs retrieved are related to the concern, go to the GEM or ICM Diagnostic Trouble Code (DTC) Index. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cobra Forums
The Terminator
Terminator Talk
Window Switch problem(no blown fuses) NEED HELP ASAP
Top