Security hood switch circuit troubleshooting

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.

Turn the ignition switch to ON (II).
With the hood closed, select SECURITY with the HDS, and enter the DATA LIST.
Check the ON/OFF information of the SECURITY HOOD SWITCH in the DATA LIST.
Is information indicator ON?

YES -Go to step 4.

NO -Go to step 8.
Disconnect the security hood switch 2P connector.
Check the ON/OFF information of the SECURITY HOOD SWITCH in the DATA LIST.
Is information indicator OFF?

YES -Faulty security hood switch; replace the hood latch (see HOOD LATCH REPLACEMENT ).

NO -Go to step 6.
Disconnect under-hood fuse/relay box connector D (10P).
Check for continuity between under-hood fuse/relay box connector D (10P) terminal No. 9 and body ground.

Fig 1: Checking For Continuity Between Connector D (10P) Terminal No. 9 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Repair a short to ground in the wire.

NO -Faulty relay control module; replace the under-hood fuse/relay box (see DTC B1065: RELAY CONTROL MODULE LOST COMMUNICATION WITH DRIVER'S MPCS UNIT (DRLOCKSW MESSAGE) ).
Disconnect the security hood switch 2P connector.
Connect security hood switch 2P connector terminal No. 2 and body ground with a jumper wire.

Fig 2: Connecting 2P Connector Terminal No. 2 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Check the ON/OFF information of the SECURITY HOOD SWITCH in the DATA LIST.
Is information indicator ON?

YES -Go to step 11.

NO -Go to step 12.
Check for continuity between security hood switch 2P connector terminal No. 1 and body ground.

Fig 3: Checking For Continuity Between 2P Connector Terminal No. 1 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Faulty security hood switch; replace the hood latch (see HOOD LATCH REPLACEMENT ).

NO -Repair an open or high resistance in the ground wire or poor ground (G201).
Connect under-hood fuse/relay box connector D (10P) terminal No. 9 and body ground with a jumper wire.

Fig 4: Connecting Connector D (10P) Terminal No. 9 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Check the ON/OFF information of the SECURITY HOOD SWITCH in the DATA LIST.
Is information indicator ON?

YES -Repair an open or high resistance in the wire.

NO -Faulty relay control module; replace the under-hood fuse/relay box (see DTC B1065: RELAY CONTROL MODULE LOST COMMUNICATION WITH DRIVER'S MPCS UNIT (DRLOCKSW MESSAGE) ).