Honda HR-V: General Information
Honda HR-V (2015-2021) Service Manual / Engine / Engine Control System & Engine Mechanical - Testing & Troubleshooting / General Information
ENGINE CONFIGURATION
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Fig. 2: Engine Configuration With Drive Belt Routing And Egine Rotation
CHECK
THROTTLE BODY CARBON ACCUMULATION CHECK
Test
1. HDS - Connect
2. Throttle Body - Test
- Start the engine. Hold the engine speed at 3, 000 rpm without load (CVT in P or N, M/T in neutral) until the radiator fan comes on, then let it idle.
- Check the REL TP SENSOR in the DATA LIST with the HDS. The reading should be below 2.46 deg. If it is not, clean the throttle body.
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Symptom Troubleshooting
AFTER WARMING UP, IDLE SPEED IS ABOVE SPECIFICATIONS WITHOUT LOAD (MIL
WORKS OK, NO DTCS SET) (KA/KC)
Diagnostic procedure
1. APP Sensor Signal Inspection
Also check for
Intake air leaks
AFTER WARMING
A/C Signal Circuit Troubleshooting
1. A/C compressor clutch condition check.
Start the engine, and let it idle.
Turn the blower switch on.
Turn the A/C switch on.
Check the parameter(s) below with the HDS.
Do the current conditi
SEE MORE:
DTC B0021-1A
Special Tools Required
SRS Short Canceller 070AZ-SAA0100
NOTE:
Before doing this troubleshooting procedure, find out if the vehicle was
in a collision. If so, verify
that all the required components were replaced with new components of the
correct part number,
and that they were properly ins
Description
COOLING FAN CONTROL SYSTEM DESCRIPTION - OVERVIEW
Overview
Receiving various signals, such as coolant temperature signals and
refrigerant compression signals, from
sensors, the PCM performs the fan control switching the fan speed (HI/LO) as
needed. This control efficiently
operates the radiator fa
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