Honda HR-V: Heater Fan Switch Test
Honda HR-V (2015-2021) Service Manual / HVAC / HVAC System - Testing & Troubleshooting / Testing / Heater Fan Switch Test
Test
1. Heater Control Panel - Remove
2. Heater Fan Switch - Test
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- Check for continuity between the terminals in each switch position according to the table.
- If the continuity could not found between the indicated terminals, replace the heater fan switch.
3. All Removed Parts - Install
- Install the parts in the reverse order of removal.
HUMIDITY/IN-CAR TEMPERATURE SENSOR TEST
Test
NOTE:
- Before testing the sensor, check for climate control DTCs.
- The climate control unit receives humidity (%) data via digital signal.
- The climate control unit receives in-car temperature (ºC) data via digital transmission.
1. Humidity/In-Car Temperature Sensor - Test
- Turn the vehicle to the OFF (LOCK) mode and then the ON mode.
- Touch and hold the AUTO icon (A), then within 10 seconds touch and release the RECIRCULATION icon (B) five times.
Single A/C type
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Dual A/C type
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- After the display mode of the sensor, release the AUTO icon. The temperature indicator (single A/C type) (C) or driver's temperature indicator (dual A/C type) (D) will flash the sensor number 1 and then the value for that sensor
- Touch the REAR WINDOW DEFOGGER/MIRROR DEFOGGER icon (E) until the desired sensor number is displayed.
NOTE: The sensor number and the data are displayed alternatively every one second on the set temperature indicator (single A/C type) or driver's temperature indicator (dual A/C type).
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SUNLIGHT SENSOR TEST
Test
NOTE: Before testing the sensor, check for climate control DTCs.
1. Sunlight Sensor - Test
With automatic lighting system
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Without automatic lighting system
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- Pull out the sunlight sensor (A)
- Turn the vehicle to the ON mode
- Measure the voltage between (+) probe on terminal No. 2 and (-)
probe on terminal No. 3 (with automatic lighting system) or No. 1
(without automatic lighting system) with the connector connected.
NOTE: The voltage readings will not change under the light of a flashlight or a fluorescent lamp. Voltage should be:
- 3.56 V with no sunlight or the sensor covered up.
- Less than 3.56 V with sunlight on the sensor (depending on sunlight intensity).
- If the voltage is not as specified, replace the sunlight sensor.
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General Information
A/C SERVICE TIPS AND PRECAUTIONS
Compressed air mixed with the R-134a forms a combustible vapor.
The vapor can burn or explode causing serious injury.
Never use compressed air to pressure test R-
A/C Compressor Clutch Check
Check
1. A/C Compressor Clutch Clearance - Check
Check the armature plate (A) for discoloration, peeling, or other
damage. If there is
damage, replace the clutch set.
Check the pulley (B) beari
SEE MORE:
A/C Diagnostic Process
When a customer presents an A/C concern, do the following procedure to
identify the cause of the problem.
1. Confirm the type of concern.
If a customer complains about an A/C performance problem, go to step 2.
If a customer complains about an A/C noise problem, do the A/C system
noise check.
Ridge Removal
NOTE: Examples used in this article are general in nature and do not
necessarily relate
to a specific engine or system. Illustrations and procedures have been chosen
to guide mechanic through engine overhaul process. Descriptions of processes
of cleaning, inspection, assembly and machine shop pract
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