DTC Troubleshooting: P16E8 (1.5 L Engine) - Honda CR-V RW/RT 2017-2020

1.

Problem verification:

Problem verification

?1.	Turn the vehicle to the ON mode.

?2.	Clear the DTC with the HDS.

?3.	Turn the vehicle to the OFF (LOCK) mode.

?4.	Turn the vehicle to the ON mode, and wait 10 seconds.

?5.

Check for Pending or Confirmed DTCs with the HDS.

DTC Description	Confirmed DTC	Pending DTC
P16E8 PGM-FI-Shutter Grille LIN Communication Error

Is DTC P16E8 indicated?


	YES

Go to step 2.


	NO

Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the shutter grille and the PCM. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot.?

2.

DTC check 1:

DTC check 1

?1.

Check for Pending or Confirmed DTCs with the HDS.

DTC Description	Confirmed DTC	Pending DTC
P16E2 PGM-FI-ACG LIN Communication Error

Is DTC P16E2 indicated?


	YES

Go to step 4.


	NO

Go to step 3.

3.

DTC check 2:

DTC check 2

?1.

Check for Pending or Confirmed DTCs with the HDS.

DTC Description	Confirmed DTC	Pending DTC
P16E3 PGM-FI-Battery Sensor LIN Communication Error

Is DTC P16E3 indicated?


	YES

Go to step 9.


	NO

Go to step 14.

4.

Determine possible failure area (LIN(BATT SENSOR) line, others):

Determine possible failure area (LIN(BATT SENSOR) line, others)

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

?2.

Disconnect the following connectors.

Shutter grille (upper/lower) 4P connector

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Shutter grille (upper/lower) 4P connector: disconnected
Test point 1	Shutter grille (upper/lower) 4P connector (female terminal) No. 1:
Test point 2	Body ground

Is there continuity?


	YES

Go to step 5.


	NO

Go to step 6.

5.

Shorted wire check (LIN(BATT SENSOR) line):

Shorted wire check (LIN(BATT SENSOR) line)

?1.	Jump the SCS line with the HDS, and wait more than 1 minute.

?2.

Continue to check for continuity between the shutter grille (upper/lower) 4P connector terminal and body ground, while disconnecting these connectors, one at a time:

	PCM connector A (50P)
	Alternator 1P connector
	12 volt battery sensor 2P connector

Does continuity go away when one of the above connectors is disconnected?


	YES

The LIN(BATT SENSOR) wire is OK. Replace the part that caused an open when it was disconnected.?


	NO

Repair a short in the LIN(BATT SENSOR) wire between the PCM (A10), the alternator, the 12 volt battery sensor, and the shutter grille.?

6.

Determine possible failure area (shutter grille (upper), others):

Determine possible failure area (shutter grille (upper), others)

?1.	Reconnect the shutter grille (upper) 4P connector.

?2.

Disconnect the following connector.

Alternator 1P connector

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Alternator 1P connector: disconnected
	Shutter grille (lower) 4P connector: disconnected
Test point 1	Alternator 1P connector (female terminal) No. 1:
Test point 2	Body ground

Is there continuity?


	YES

Replace the shutter grille (upper).?


	NO

Go to step 7.

7.

Determine possible failure area (shutter grille (lower), others):

Determine possible failure area (shutter grille (lower), others)

?1.	Reconnect the shutter grille (lower) 4P connector.

?2.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Alternator 1P connector: disconnected
Test point 1	Alternator 1P connector (female terminal) No. 1:
Test point 2	Body ground

Is there continuity?


	YES

Replace the shutter grille (lower).?


	NO

Go to step 8.

8.

Open wire check (LIN(BATT SENSOR) line) 1:

Open wire check (LIN(BATT SENSOR) line) 1

?1.	Jump the SCS line with the HDS, and wait more than 1 minute.

?2.

Disconnect the following connectors.

Shutter grille (upper/lower) 4P connector

PCM connector A (50P)

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Shutter grille (upper/lower) 4P connector: disconnected
	Alternator 1P connector: disconnected
	PCM connector A (50P): disconnected
Test point 1	Shutter grille (upper/lower) 4P connector (female terminal) No. 1:
Test point 2	PCM connector A (50P) No. 10

Is there continuity?


	YES

The LIN(BATT SENSOR) wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM.?


	NO

Repair an open in the LIN(BATT SENSOR) wire between the PCM (A10) and the shutter grille.?

9.

Determine possible failure area (LIN(BATT SENSOR) line, others):

Determine possible failure area (LIN(BATT SENSOR) line, others)

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

?2.

Disconnect the following connectors.

Shutter grille (upper/lower) 4P connector

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Shutter grille (upper/lower) 4P connector: disconnected
Test point 1	Shutter grille (upper/lower) 4P connector (female terminal) No. 1:
Test point 2	Body ground

Is there continuity?


	YES

Go to step 10.


	NO

Go to step 11.

10.

Shorted wire check (LIN(BATT SENSOR) line):

Shorted wire check (LIN(BATT SENSOR) line)

?1.	Jump the SCS line with the HDS, and wait more than 1 minute.

?2.

Continue to check for continuity between the shutter grille (upper/lower) 4P connector terminal and body ground, while disconnecting these connectors, one at a time:

	PCM connector A (50P)
	12 volt battery sensor 2P connector
	Alternator 1P connector

Does continuity go away when one of the above connectors is disconnected?


	YES

The LIN(BATT SENSOR) wire is OK. Replace the part that caused an open when it was disconnected.?


	NO

Repair a short in the LIN(BATT SENSOR) wire between the PCM (A10), the alternator, the 12 volt battery sensor and the shutter grille.?

11.

Determine possible failure area (shutter grille (upper), others):

Determine possible failure area (shutter grille (upper), others)

?1.	Reconnect the shutter grille (upper) 4P connector.

?2.

Disconnect the following connector.

12 volt battery sensor 2P connector

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	12 volt battery sensor 2P connector: disconnected
	Shutter grille (lower) 4P connector: disconnected
Test point 1	12 volt battery sensor 2P connector (female terminals) No. 2:
Test point 2	Body ground

Is there continuity?


	YES

Replace the shutter grille (upper).?


	NO

Go to step 12.

12.

Determine possible failure area (shutter grille (lower), others):

Determine possible failure area (shutter grille (lower), others)

?1.	Reconnect the shutter grille (lower) 4P connector.

?2.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	12 volt battery sensor 2P connector: disconnected
Test point 1	12 volt battery sensor 2P connector (female terminals) No. 2:
Test point 2	Body ground

Is there continuity?


	YES

Replace the shutter grille (lower).?


	NO

Go to step 13.

13.

Open wire check (LIN(BATT SENSOR) line) 1:

Open wire check (LIN(BATT SENSOR) line) 1

?1.	Jump the SCS line with the HDS, and wait more than 1 minute.

?2.

Disconnect the following connectors.

Shutter grille (upper/lower) 4P connector

PCM connector A (50P)

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	12 volt battery sensor 2P connector: disconnected
	Shutter grille (upper/lower) 4P connector: disconnected
	PCM connector A (50P): disconnected
Test point 1	Shutter grille (upper/lower) 4P connector (female terminal) No. 1:
Test point 2	PCM connector A (50P) No. 10

Is there continuity?


	YES

The LIN(BATT SENSOR) wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM.?


	NO

Repair an open in the LIN(BATT SENSOR) wire between the PCM (A10) and the shutter grille.?

14.

Fuse check:

Fuse check

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

?2.

Check the following fuse.

Fuse	No. A23 shutter grille (upper)
Fuse	No. A22 shutter grille (lower)

Is the fuse OK?


	YES

Go to step 15.


	NO

	Check for a short in the VMP wire between the No. A23 fuse and the shutter grille (upper). Also replace the No. A23 fuse.?
	Check for a short in the +B FR FOG/VMP wire between the No. A22 fuse and the shutter grille (lower). Also replace the No. A22 fuse.?

15.

Determine possible failure area (LIN(BATT SENSOR) line, +B FR FOG/VMP line):

Determine possible failure area (LIN(BATT SENSOR) line, +B FR FOG/VMP line)

?1.

Disconnect the following connector.

Shutter grille (upper/lower) 4P connector

?2.

Measure the voltage between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Shutter grille (upper/lower) 4P connector: disconnected
Test point 1	Shutter grille (upper/lower) 4P connector (female terminals) No. 3:
Test point 2	Shutter grille (upper/lower) 4P connector (female terminals) No. 2:

Is there battery voltage?


	YES

Go to step 17.


	NO

Go to step 16.

16.

Open wire check (+B FR FOG/VMP line):

Open wire check (+B FR FOG/VMP line)

?1.

Measure the voltage between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Shutter grille (upper/lower) 4P connector: disconnected
Test point 1	Shutter grille (upper/lower) 4P connector (female terminals) No. 3:
Test point 2	Body ground

Is there battery voltage?


	YES

	Repair an open in the GND wire between the shutter grille (upper) and G351.?
	Repair an open in the GND wire between the shutter grille (lower) and G251.?


	NO

	Repair an open in the VMP wire between the shutter grille (upper) and the No. A23 fuse.?
	Repair an open in the +B FR FOG/VMP wire between the shutter grille (lower) and the No. A22 fuse.?

17.

Open wire check (LIN(BATT SENSOR) line) 2:

Open wire check (LIN(BATT SENSOR) line) 2

?1.	Jump the SCS line with the HDS, and wait more than 1 minute.

?2.

Disconnect the following connectors.

PCM connector A (50P)

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Shutter grille (upper/lower) 4P connector: disconnected
	PCM connector A (50P): disconnected
Test point 1	Shutter grille (upper/lower) 4P connector (female terminal) No. 1:
Test point 2	PCM connector A (50P) No. 10

Is there continuity?


	YES

The LIN(BATT SENSOR) wire is OK. Replace the shutter grille.?


	NO

Repair an open in the LIN(BATT SENSOR) wire between the PCM (A10) and the shutter grille (upper or lower).?