Dual Pane Sunroof Troubleshooting
The hard wired circuits between components related to the operation of the dual pane power sunroof and sunshade system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds. For proper wire repair, and connector repair procedures. Refer to WIRE SPLICING , CONNECTOR TERMINAL REMOVAL and CONNECTOR TERMINAL INSTALLATION .
TEST PREPARATION
- Check Electrical System Voltage - There should be at least 12.5 volts when measured at the battery terminals.
- Ignition Switch Position - The ignition switch should be in the ON/Run position with the engine not running.
- Note Power Sunroof Responses - Press each of the sunroof control switches one at a time and note the system responses. Try both express (press and release) and manual (press and hold) operation for each switch.
- Note Power Sunshade Responses - Press each of the sunshade control switches one at a time and note the system responses. Try both express (press and release) and manual (press and hold) operation for each switch.
Match the noted system responses to the conditions listed in the diagnostic table to determine the possible causes and corrections for the condition.
| CONDITION | POSSIBLE CAUSES | CORRECTION |
|---|---|---|
| POWER SUNROOF ONLY RESPONDS TO SUNROOF CLOSE SWITCH INPUT (AUDIBLE MOTOR RELAY CLICK NOISE or GLASS MOVES) & NO RESPONSE TO ALL OTHER SWITCH INPUTS | 1. Sunroof motors have lost calibration. | 1. Perform re-initialization & obstacle detection calibration procedure. Refer to DUAL PANE SUNROOF CALIBRATIONS . |
| GLASS OR SUNSHADE AUTO REVERSES DURING EXPRESS CLOSE OPERATION BUT NO OBSTRUCTION PRESENT IN ROOF OPENING | 1. Debris or obstruction in sunroof guide rails interfering with sunroof mechanism or sunshade guides. | 1. Fully open sunroof glass or sunshade and inspect sunroof aluminum guide rails for debris that may be interfering with sliding mechanisms and clean as necessary. |
| 2. Debris under wind deflector not allowing wind deflector to properly retract during close operation. | 2. Inspect for debris under wind deflector springs and remove as necessary. | |
| 3. Sunroof obstacle detection system requires re-calibration. | 3. Perform re-initialization & obstacle detection calibration procedure. Refer to DUAL PANE SUNROOF CALIBRATIONS . | |
| POWER SUNROOF AND POWER SUNSHADE COMPLETELY INOPERATIVE AND UNRESPONSIVE TO ALL SWITCH PRESSES | 1. Thermal protection feature on motor active. | 1. If the sunroof or sunshade has been cycled consecutively several times with little pause between cycles the motor thermal protection may engage and stop responding to all switch inputs if the sunroof or sunshade is fully closed. For thermal protection to deactivate the vehicle ignition must be set to ON/Run, do not attempt to operate sunroof for at least two minutes to allow motor(s) to cool and the thermal protection to become inactive, then test again. |
| 2. Blown sunroof feed B(+) fuse. | 2. Inspect sunroof B(+) fuse F14 located in Power Distribution Center-Rear and replace if required. Refer to Wiring Diagrams for correct fuse identification (BODY/ SUNROOF/POWER TOP SYSTEM - DUAL PANE). | |
| 3. Wire harness not connected to overhead console sunroof control switches. | 3. Lower overhead console to confirm MODULE-OVER HEAD CONSOLE harness connector is connected to overhead console. | |
| 4. Blown ignition feed fuse. | 4. Inspect ignition feed Fuse F21 located in Power Distribution Center-Rear and replace if required. Refer to Wiring Diagrams for correct fuse identification (BODY/ SUNROOF/POWER TOP SYSTEM - DUAL PANE). | |
| 5. Broken B(+) A130 or Ground Circuit Z953. Bent connector pins, wire damage or connectors not fully seated. | 5. Disconnect connector XY707A (headliner to sunroof connector) and inspect for bent pins. With vehicle battery connected check for battery voltage between pins 1 & 4 on XY707A headliner connector (ignition state is irrelevant). If no voltage detected disconnect wire harness connections between Power Distribution Center-Rear and Sunroof Assy for B(+) circuit A130 and Ground circuit Z953. Inspect each connector closely for bent connector pin. Refer to Wiring Diagrams for connector pin outs (BODY/ SUNROOF/POWER TOP SYSTEM - DUAL PANE/Diagram). Replace wire harness or repair if bent connector pin found. | |
| 6. Broken fused ignition (RUN/ON) circuit F981. | 6. Disconnect connector XY707A (headliner to sunroof connector) and measure the voltage between GROUND pin 4 and FUSED IGNITION pin 14 in the XY707A connector with vehicle battery connected and ignition set to ON/Run. Refer to Wiring Diagrams for connector pin out (BODY/ SUNROOF/POWER TOP SYSTEM - DUAL PANE/ Connectors). | |
| 7. Defective sunroof/sunshade switch assembly in overhead console. | 7. Test and replace the sunroof/sunshade switch assembly (overhead console assembly) if required. | |
| 8. Broken SUNROOF SWITCH SUPPLY Q6 circuit. | 8. Disconnect the MODULE-OVER HEAD CONSOLE connection at overhead console and confirm that connector pin for SUNROOF SWITCH RETURN Q6 grounds out to body (refer to BODY/ SUNROOF/POWER TOP SYSTEM - DUAL PANE/ Connectors/ MODULE-OVER HEAD CONSOLE for pin out information). If SUNROOF SWITCH RETURN Q6 does not ground to body inspect circuit for damaged wire or bent pin and repair if necessary. | |
| 9. Defective sunroof/sunshade motor. | 9. Replace the sunroof/sunshade motor if required. | |
| SLIGHT SUNROOF OR SUNSHADE MOVEMENT OR AUDIBLE RELAY CLICKS BUT WILL NOT COMPLETE MOVEMENT FOR ANY SUNROOF CONTROL SWITCH ACTUATIONS | 1. Binding glass mechanism or binding sunshade guide due to debris or obstruction in aluminum guide rail. | 1. Remove the debris or obstruction from sunroof guide rail. |
| 2. Defective sunroof/sunshade motor or broken drive cable or mechanism. | 2. Remove the sunroof or sunshade motor from sunroof assembly but do not disconnect wire harness. Attempt to operate motor with sunroof control switches in overhead console and ignition in ON/Run. If motor will not operate replace the defective motor. If motor does cycle/operate when removed from sunroof assembly it is likely that a drive cable or mechanism has failed; if this is confirmed it is necessary to replace the entire sunroof frame. | |
| POWER SUNROOF OR SUNSHADE WILL CLOSE BUT DOES RESPOND TO OPEN OR VENT OPEN SWITCH PRESSES | 1. Thermal protection feature on motor is active. | 1. If the sunroof or sunshade has been cycled consecutively several times with little pause between cycles the motor thermal protection may engage and stop responding to open and vent open switch inputs. With thermal protection active the sunroof system will still allow the sunshade or glass to be cycled closed. When the sunroof glass or sunshade are fully closed sunroof will ignore all switch inputs until thermal protection deactivates. For thermal protection to deactivate the vehicle ignition must be set to ON/Run, do not attempt to operate sunroof for at least two minutes to allow motor(s) to cool and the thermal protection to become inactive, then test again. |
| POWER SUNROOF OPENS TO VENT AND CLOSES FROM VENT BUT DOES NOT SLIDE OPEN OR POWER SUNSHADE CLOSES BUT DOES NOT OPEN (SUNROOF OPEN OR VENT SWITCH STILL AUTO OPENS SUNSHADE BUT NO RESPONSE TO SUNSHADE OPEN SWITCH) | 1. Defective sunroof or sunshade OPEN switch in overhead console. | 1. Lower overhead console and disconnect MODULE-OVER HEAD CONSOLE (D6627A) wire connection and test switch to confirm circuit closes between SUNROOF OPEN SIGNAL Q3 or SUNROOF SHADE OPEN SIGNAL Q556 and SUNROOF SWITCH SUPPLY Q6 while OPEN switch is pressed. Refer to Wiring Diagrams for connector pin out (BODY/ SUNROOF/POWER TOP SYSTEM - DUAL PANE/ Connectors/ MODULE-OVER HEAD CONSOLE). Replace switch if necessary. Proceed to Step 2 if switch tests OK. |
| 2. Broken SUNROOF OPEN SIGNAL Q3 or SUNROOF SHADE OPEN SIGNAL Q556 circuit. | 2. Disconnect wire harness connections: - XY707A at sunroof harness - MODULE-OVER HEAD CONSOLE (D6627A) Test the continuity of the SUNROOF OPEN SIGNAL Q3 or SUNROOF SHADE OPEN SIGNAL Q556 circuits. Refer to Wiring Diagrams for connector pin outs (BODY/ SUNROOF/POWER TOP SYSTEM - DUAL PANE/ Connectors). Proceed to Step 3 if broken circuit found. Proceed to Step 5 if circuit tests OK | |
| 3. Bent connector pin for OPEN switch circuit Q3 or Q556 at one of the wire harness connections between the sunroof and overhead console sunroof/sunshade control switch. | 3. Disconnect wire harness connections at: - MODULE-OVER HEAD CONSOLE (D6627A) - XY707A - MOTOR-SUNROOF SHADE (D3218A) - MOTOR-SUNROOF (D3036A) Inspect each connector closely for bent connector pin. Replace wire harness or repair if bent connector pin found. If no bent connector pins found proceed to Step 4. | |
| 4. Broken or damaged wire between sunroof or sunshade OPEN switch in overhead console and sunroof motors (circuit Q3 or Q556). | 4. Inspect wire harnesses for SUNROOF OPEN SIGNAL Q3 or SUNROOF SHADE OPEN SIGNAL Q556 circuit continuity between: - MODULE-OVER HEAD CONSOLE (D6627A) and XY707A Refer to Wiring Diagrams for connector pin outs (BODY/ SUNROOF/POWER TOP SYSTEM - DUAL PANE/ Connectors). Repair or replace wire harness with broken circuit. | |
| 5. Defective sunroof/sunshade motor assembly. | 5. Replace the sunroof/sunshade motor if required. | |
| POWER SUNROOF VENTS AND SLIDES OPEN BUT DOES NOT CLOSE OR POWER SUNSHADE OPENS BUT DOES NOT CLOSE | 1. Defective sunroof or sunshade CLOSE switch in overhead console. | 1. Lower overhead console and disconnect MODULE-OVER HEAD CONSOLE (D6627A) wire connection and test switch to confirm circuit closes between SUNROOF CLOSE SIGNAL Q5 or SUNROOF SHADE CLOSE SIGNAL Q56 and SUNROOF SWITCH RETURN Q6 while CLOSE switch is pressed. Refer to Wiring Diagrams for connector pin out (BODY/ SUNROOF/POWER TOP SYSTEM - DUAL PANE/ Connectors/ MODULE-OVER HEAD CONSOLE). Replace switch if necessary. Proceed to Step 2 if switch tests OK. |
| 2. Broken SUNROOF CLOSE Q5 or SUNROOF SHADE CLOSE Q56 circuit. | 2. Disconnect wire harness connections: - XY707A at sunroof harness - MODULE-OVER HEAD CONSOLE (D6627A) at overhead console Test the continuity of the SUNROOF CLOSE SIGNAL Q5 or SUNROOF SHADE CLOSE SIGNAL Q56 circuits. Refer to Wiring Diagrams for connector pin outs (BODY/ SUNROOF/POWER TOP SYSTEM - DUAL PANE/ Connectors). Proceed to Step 3 if broken circuit found. Proceed to Step 5 if circuit tests OK. | |
| 3. Bent connector pin for CLOSE switch circuit Q5 or Q56 at one of the wire harness connections between the sunroof and overhead console sunroof/sunshade control switch. | 3. Disconnect wire harness connections at: - MODULE-OVER HEAD CONSOLE (D6627A) - XY707A - MOTOR-SUNROOF SHADE (D3218A) - MOTOR-SUNROOF (D3036A) Inspect each connector closely for bent connector pin. Replace wire harness or repair if bent connector pin found. If no bent connector pins found proceed to Step 4. | |
| 4. Broken or damaged wire between sunroof or sunshade CLOSE switch in overhead console and sunroof motors (circuits Q5 or Q56). | 4. Inspect wire harnesses for SUNROOF CLOSE SIGNAL Q5 or SUNROOF SHADE SIGNAL Q56 circuit continuity between: - MODULE-OVER HEAD CONSOLE (D6627A) and XY707A Refer to Wiring Diagrams for connector pin outs (BODY/ SUNROOF/POWER TOP SYSTEM - DUAL PANE/ Connectors). Repair or replace wire harness with broken circuit. | |
| 5. Defective sunroof/sunshade motor assembly. | 5. Replace the sunroof/sunshade motor if required. | |
| POWER SUNROOF SLIDES OPEN AND CLOSE BUT WILL NOT VENT | 1. Defective sunroof VENT switch in overhead console. | 1. Lower overhead console and disconnect MODULE-OVER HEAD CONSOLE (D6627A) wire connection and test switch to confirm circuit closes between SUNROOF VENT SIGNAL Q4 and SUNROOF SWITCH RETURN Q6 while VENT switch is pressed. Refer to Wiring Diagrams for connector pin out (BODY/ SUNROOF/POWER TOP SYSTEM - DUAL PANE/ Connectors/ MODULE-OVER HEAD CONSOLE). Replace switch if necessary. Proceed to Step 2 if switch tests OK. |
| 2. Broken SUNROOF VENT Q4 circuit. | 2. Disconnect wire harness connections: - XY707A at sunroof harness - MODULE-OVER HEAD CONSOLE (D6627A) at overhead console Test the continuity of the SUNROOF VENT SIGNAL Q4 circuit. Refer to Wiring Diagrams for connector pin outs (BODY/ SUNROOF/POWER TOP SYSTEM - DUAL PANE/ Connectors). Proceed to Step 3 if broken circuit found. Proceed to Step 5 if circuit tests OK. | |
| 3. Bent connector pin for VENT switch circuit Q4 at one of the wire harness connections between the sunroof and overhead console sunroof/sunshade control switch | 3. Disconnect wire harness connections at: - MODULE-OVER HEAD CONSOLE (D6627A) - XY707A - MOTOR-SUNROOF (D3036A) Inspect each connector closely for bent connector pin. Replace wire harness or repair if bent connector pin found. If no bent connector pins found proceed to Step 4. | |
| 4. Broken or damaged wire between sunroof VENT switch in overhead console and sunroof motors (circuit Q4). | 4. Inspect wire harnesses for SUNROOF VENT SIGNAL Q4 circuit continuity between: - MODULE-OVER HEAD CONSOLE (D6627A) and XY707A Refer to Wiring Diagrams for connector pin outs (BODY/ SUNROOF/POWER TOP SYSTEM - DUAL PANE/ Connectors). Repair or replace wire harness with broken circuit. | |
| 5. Defective sunroof/sunshade motor assembly. | 5. Replace the sunroof/sunshade motor if required. | |
| POWER SUNROOF OR SUNSHADE INTERMITTENTLY VENTS, OPENS OR CLOSES ON ITS OWN WITHOUT USER SWITCH INPUT WHILE DRIVING VEHICLE | 1. OPEN, CLOSE, or VENT switch circuit wire between sunroof switch and sunroof is pinched against body (wire insulation damaged) and intermittently grounding out to body. | 1. Inspect circuit wires between sunroof switch and sunroof motor for cut wire insulation or pinch conditions against sheet metal body and repair/replace if necessary. |