Sunroof Control Unit Input Test

KK, KU and KT models

1.	Remove the headliner.

2.	Disconnect the 5P connector (A) from the sunroof control unit (B).

3.

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, replace the sunroof control unit. Cavity  Wire  Test condition  Test: Desired result  Possible cause if result is not obtained  5  BLK  Under all conditions  Check for continuity to ground: There should be continuity.  Poor ground (G401) An open in the wire   1  YEL  Ignition switch ON (II)   Check for voltage to ground: There should be battery voltage.  Blown No.16 (7.5A) fuse in the under-dash fuse/relay box An open in the wire   4  LT GRN  Sunroof fully closed position  Check for voltage to ground: There should be continuity.  Poor ground (G401) Faulty sunroof open switch An open in the wire   3  RED/YEL  Ignition switch ON (II)  Check for voltage to ground: There should be battery voltage.  Blown No. 16 (7.5 A) fuse in the under-dash fuse/relay box Faulty sunroof open relay An open in the wire   2  GRN/WHT  Ignition switch ON (II)  Check for voltage to ground: There should be battery voltage.  Blown No. 16 (7.5 A) fuse in the under-dash fuse/relay box Faulty sunroof close relay An open in the wire   Connect No. 3 and No. 5 terminals with a jumper wire, then ignition switch ON (II)  Check the motor operation: The motor should run (the sunroof should open).  Poor ground (G401) Blown No. 7 (30 A) fuse in the under-hood fuse/relay box Blown No. 16 (7.5 A) fuse in the under-dash fuse/relay box Faulty sunroof open relay Faulty sunroof close relay Faulty sunroof motor An open in the wire   Connect No. 2 and No. 5 terminals with a jumper wire, then ignition switch ON (II)  Check the motor operation: The motor should run (the sunroof should close).