Control Unit Input Test

Remove the rear shelf under cover (see TRIM REMOVAL/INSTALLATION - REAR SHELF AREA ).
Disconnect the 5P connector (A) from the power rear window sunshade control unit (B).

Fig 1: Disconnecting 5P Connector From Power Rear Window Sunshade Control Unit
Courtesy of AMERICAN HONDA MOTOR CO., INC.
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 4.

Reconnect the connector to the control unit, and do the following input tests.

If any test indicates a problem, find and correct the cause, then recheck the system.
If all the input tests prove OK, the control unit must be faulty; replace the power rear window sunshade.

TEST CONDITION AND WIRE REFERENCE CHART

Cavity	Wire	Test condition	Test: Desired result	Possible cause if desired result is not obtained
1	BLK	Ignition switch ON (II)	Measure the voltage to ground: There should be less than 0.2 V.	Poor ground (G602)
An open or high resistance in the ground wire 5	GRN	Ignition switch ON (II)	Measure the voltage to ground: There should be battery voltage.	Blown No. 11 (15 A) fuse in the driver's under-dash fuse/relay box An open or high resistance in the wire
4	BRN	Ignition switch ON (II), transmission range switch in R	Measure the voltage to ground: There should be battery voltage.	Blown No. 21 (10 A) fuse in the driver's under-dash fuse/relay box Faulty driver's under-dash fuse/relay box Faulty transmission range switch An open or high resistance in the wire
3	BLU	Ignition switch ON (II), sunshade switch ON	Measure the voltage to ground: There should be less than 0.2 V.	Poor ground (G601) or an open in the ground wire Faulty sunshade switch An open or high resistance in the wire
3	BLU	Ignition switch ON (II), sunshade switch OFF	Measure the voltage to ground: There should be at least 5 V.	Faulty sunshade switch A short to ground in the wire