Honda HR-V: Keyless Access System Touch Sensor Circuit Troubleshooting

Testing

1. Keyless access system check 1:

1. Select KEYLESS ACCESS CONTROL UNIT from the ONE-PUSH START system select menu with the HDS, and enter HISTORY DATA.

One-Push - KEYLESS ACCESS CONTROL UNIT- HISTORY DATA

2. Select HISTORY CLEAR, and back to TEST MODE menu:

NOTE: When the freeze data is cleared, the information indicates "NOT CONFIRMED".

• DRIVER DOOR UNLOCK SWITCH
• DRIVER DOOR LOCK SWITCH
• FRONT PASSENGER DOOR UNLOCK SWITCH
• FRONT PASSENGER DOOR LOCK SWITCH

3. Turn the vehicle to the OFF (LOCK) mode.
4. Get out of the vehicle with the keyless remote, and touch the driver's or front passenger's door outer handle touch sensor and push the lock button.
5. Select KEYLESS ACCESS CONTROL UNIT from the ONE-PUSH START system select menu with the HDS, and enter HISTORY DATA.

One-Push - KEYLESS ACCESS CONTROL UNIT- HISTORY DATA

6. Recheck HISTORY DATA.

• DRIVER DOOR UNLOCK SWITCH
• DRIVER DOOR LOCK SWITCH
• FRONT PASSENGER DOOR UNLOCK SWITCH
• FRONT PASSENGER DOOR LOCK SWITCH

Is all the information OK?

YES

The system is OK at this time.

NO

Go to step 2.

2. Open wire check (GND lines):

1. Disconnect the following connectors.

Driver's door outer handle 8P connector Front passenger's door outer handle 8P connector

2. Check for continuity between test points 1 and 2 individually.

Driver's door

Front passenger's door

Is there continuity?

YES

The GND wire is OK. Go to step 3.

NO

Repair an open or high resistance in the ground wire or poor ground (G401, G403).

3. Determine possible failure area (TS FR line, VOUT FR lines):

1. Measure the voltage between test points 1 and 2 individually.

Driver's door

Front passenger's door

Is there battery voltage?

YES

Go to step 4.

NO

Go to step 7.

4. Open wire check (TS FR DR, TS FR AS lines):

1. Disconnect the following connector.

Keyless access control unit connector C (20P)

2. Connect terminals A and B with jumper wires.

Driver's door

Front passenger's door

3. Check for continuity between test points 1 and 2 individually.

Is there continuity?

YES

The TS FR DR and TS FR AS wires are not open. Go to step 5.

NO

Repair an open or high resistance in the wire(s).

5. Shorted wire check (TS FR DR, TS FR AS lines):

1. Remove the jumper wire from the touch sensor.
2. Check for continuity between test points 1 and 2 individually.

Is there continuity?

YES

Repair a short to ground in the wire(s).

NO

The TS FR DR and TS FR AS wires are OK. Go to step 6.

6. Keyless access system check 2:

1. Substitute a known-good touch sensor, and recheck.

Is the system OK?

YES

Faulty the original door touch sensor/lock switch; replace the door outer handle.

NO

Replace the keyless access control unit.

7. Open wire check (VOUT FR DR, VOUT FR AS lines):

1. Measure the voltage between test points 1 and 2 individually.

Is there battery voltage?

YES

Repair an open or high resistance in the wire(s).

NO

The VOUT FR DR and VOUT FR AS wires are OK. Replace the keyless access control unit.

READ NEXT: