HVAC DTC Troubleshooting: 13 | 2012-2016 CR-V RM1/RM4,RE5/RE6 HONDA CR-V Service Manual

1.

Problem verification:

Problem verification

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

?2.	Do the Self-Diagnostic Function with the HVAC control unit.

?3.	Check for DTCs.

Is DTC 13 indicated?

Go to step 2.

Intermittent failure. Check for loose wires or poor connections on the evaporator temperature sensor circuit.?

2.

Shorted wire check (TEVA line):

Shorted wire check (TEVA line)

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

?2.

Disconnect the following connectors.

HVAC control unit 32P connector

Evaporator temperature sensor 2P connector

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	HVAC control unit 32P connector: disconnected
	Evaporator temperature sensor 2P connector: disconnected
Test point 1	HVAC control unit 32P connector No. 19
Test point 2	Body ground

Is there continuity?

Repair a short to ground in the wire between the HVAC control unit and the evaporator temperature sensor.?

The TEVA wire is not shorted. Go to step 3.

3.

Shorted wire check (TEVA line to SENSOR COM/SENS-COM line):

Shorted wire check (TEVA line to SENSOR COM/SENS-COM line)

?1.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	HVAC control unit 32P connector: disconnected
	Evaporator temperature sensor 2P connector: disconnected
Test point 1	HVAC control unit 32P connector No. 19
Test point 2	HVAC control unit 32P connector No. 20

Is there continuity?

Repair a short in the wires between the HVAC control unit and the evaporator temperature sensor.?

The TEVA wire and SENSOR COM/SENS-COM wire are OK. Go to step 4.

4.

Evaporator temperature sensor check:

Evaporator temperature sensor check

?1.	Test the evaporator temperature sensor.

Is the evaporator temperature sensor OK?