Honda HR-V: Symptom Troubleshooting
Honda HR-V (2015-2021) Service Manual / Accessories & Equipment / Network Communication - Testing & Troubleshooting / Symptom Troubleshooting
- Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode 1 And Test Mode 2 (Without The HDS)
- Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication And DTC Checks
- Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode C - NO DTCS And Output Won't Shut OFF
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Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode 1
And Test Mode 2 (Without The HDS)
Shift to Test Mode 1
Check the PCM for DTCs and troubleshoot PCM or F-CAN loss of communication
errors first, then do this
diagnosis if the HDS is not available.
1. Check the No. B21 (10 A) fuse in t
Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A
- Initial Communication And DTC Checks
Check the PCM for DTCs and troubleshoot PCM or F-CAN loss of communication
errors first, then do this
diagnosis if the symptom is related to the B-CAN system.
1. Compare the symptom with this list of
Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode C - NO DTCS And
Output Won't Shut OFF
Do this diagnosis if a component that is controlled by the B-CAN system does
not stop or turn off.
NOTE :
If the component does not turn on, go to B-CAN System Diagnosis Test
Mode D - Refer to: B
SEE MORE:
PGM-FI System Description - A/F Sensor/HO2S Feedback Air/Fuel Ratio
Control
(KA/KC)
Air-fuel ratio control is part of fuel injection control and comprises the
steps of:
Calculating basic injection amount from intake airflow amount and engine
speed
Calculating air-fuel ratio correction value from the oxygen density in
the exhaust gas and reflecting the
calculated values to
Testing
MOONROOF MOTOR-CONTROL UNIT INPUT TEST
NOTE :
Testing
Before testing, make sure the No. C18 (20 A) and No. C39 (7.5 A) fuses
in the under-dash fuse/relay box
are OK.
If the moonroof works OK manually, but will not work in AUTO, or
reverses frequently (obstacle
detection), reset the moonroof
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