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Parking And Back-Up Sensor Control Unit (2019 2020 2021)

NOTE: 

1. Turn the vehicle to the OFF (LOCK) mode.

2. Disconnect the parking and back-up sensor control unit 16P connector.

Parking and Back-Up Sensor Control Unit 16P Connector (female terminals) 

GHH309600Courtesy of HONDA, U.S.A., INC.

3. Inspect the connector and socket terminals to be sure they are all making good contact:

4. With the connector still disconnected, do the following input tests:

Cavity Wire Test condition Test: Desired result Possible cause if desired result
is not obtained
5 BLU Vehicle ON mode Connect to ground with a jumper wire:
 
The parking and back-up sensor switch indicator should come on.
7 PNK Disconnect the right front corner sensor 6P connector Check for continuity between terminal No. 7 and right front corner sensor 6P connector terminal No. 6:
 
There should be continuity.		 An open or high resistance in the wire
Check for continuity between the terminal No. 7 and body ground:
 
There should be no continuity.		 A short to ground in the wire
6 YEL Disconnect the right front corner sensor 6P connector Check for continuity between terminal No. 6 and right front corner sensor 6P connector terminal No. 4:
 
There should be continuity.		 An open or high resistance in the wire
Check for continuity between the terminal No. 6 and body ground
 
: There should be no continuity.		 A short to ground in the wire
13 WHT Disconnect the right front corner sensor 6P connector Check for continuity between terminal No. 13 and right front corner sensor 6P connector terminal No. 2:
 
There should be continuity.		 An open or high resistance in the wire
Check for continuity between the terminal No. 13 and body ground:
 
There should be no continuity.		 A short to ground in the wire
16 LT GRN Disconnect the left rear corner sensor 6P connector Check for continuity between terminal No. 16 and left rear corner sensor 6P connector terminal No. 6:
 
There should be continuity.		 An open or high resistance in the wire
Check for continuity between the terminal No. 16 and body ground:
 
There should be no continuity.		 A short to ground in the wire
12 TAN Disconnect the left rear corner sensor 6P connector Check for continuity between terminal No. 12 and left rear corner sensor 6P connector terminal No. 2:
 
There should be continuity.		 An open or high resistance in the wire
Check for continuity between the terminal No. 12 and body ground:
 
There should be no continuity.		 A short to ground in the wire
14 PUR Disconnect the left rear corner sensor 6P connector Check for continuity between terminal No. 14 and left rear corner sensor 6P connector terminal No. 4:
 
There should be continuity.		 An open or high resistance in the wire
Check for continuity between the terminal No. 14 and body ground:
 
There should be no continuity.		 A short to ground in the wire

5. Reconnect the connector, and do the following input tests:

Cavity Wire Test condition Test: Desired result Possible cause if desired result
is not obtained
8 GRN Vehicle ON mode Measure the voltage to ground:
 
There should be battery voltage.
4 BLK In all power modes Measure the voltage to ground:
 
There should be less than 0.2 V.
  • Poor ground (G402)
  • An open or high resistance in the ground wire
15 LT BLU Vehicle ON mode, and parking and back-up sensor switch ON Measure the voltage to ground:
 
There should be battery voltage.
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