( TL19E00J34200057274FCAT00 )

Sunroof Control Unit (Motor) Input Test

NOTE: If the sunroof works OK manually, but will not work in AUTO, or reverses frequently (obstacle detection), reset the sunroof control unit before proceeding with the input test.

1. Turn the ignition switch to LOCK (0).

1. Remove the headliner.

1. Disconnect the 14P connector (A) from the sunroof control unit (B).

1. Inspect the connector and socket terminals to be sure they are all making good contact.
   - If the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system.
   - If the terminals look OK, go to Step 5 .

1. With the connector still disconnected, make these input tests at the connector.
   - If any test indicates a problem, find and correct the cause, then recheck the system.
   - If all the input tests prove OK, go to Step 6 .

   Cavity | Wire | Test condition | Test: Desired result | Possible cause if desired result is not obtained
   --- | --- | --- | --- | ---
   11 | BLU | Under all conditions | Check for continuity between the sunroof switch 14P connector No. 11 terminal and power window master switch 37P connector No. 27 terminal: There should be continuity. | An open in the wire
   Check for continuity between the sunroof switch 14P connector No. 11 terminal and body ground: There should be no continuity. | A short to ground in the wire

   7

   GRN

   Under all conditions

   Measure the voltage to ground: There should be battery voltage.

   - Blown No. 20 (20 A) fuse in the driver's under-dash fuse/relay box
   - An open in the wire

   8

   BLK

   Under all conditions

   Check for continuity to ground: There should be continuity.

   - Poor ground (G502)
   - An open in the wire

   2

   GRY

   Sunroof switch in CLOSE position

   Check for continuity to ground: There should be continuity.

   - Faulty sunroof switch
   - An open in the wire
   - Poor ground (G501)

   3 | LT GRN | Sunroof switch in TILT position | Check for continuity to ground: There should be continuity.
   4 | LT BLU | Sunroof switch in OPEN position | Check for continuity to ground: There should be continuity.
   9 | PUR | Sunroof switch in AUTO OPEN or AUTO CLOSE position | Check for continuity to ground: There should be continuity.

1. If all the input tests are OK and multiple failures are found, replace the sunroof control unit/motor assembly. If the problem is related to the key-off operation, go to the driver's MICU input test , and door multiplex control unit input test.