Honda HR-V: Description
CHARGING SYSTEM DESCRIPTION - OVERVIEW
Overview
The PCM gathers vehicle operating system data and determines the required charging rate. Based on that data, the PCM commands the alternator to provide a specific charging rate (voltage) between 12.5 and 14.5 volts, using 1/10th volt steps. In some operating conditions, the alternator may bypass PCM control and use a default value.
*Depending on the vehicle condition, the variable control is not activated.
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When the alternator is at fault, one or more of the following DTC is stored. Refer to the corresponding troubleshooting.
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Testing
ALTERNATOR PERFORMANCE TEST
Special Tools Required
Honda 12 Volt Battery Diagnostic Station (GR8): Model Number MTRGR81100P*
*: Available through the Honda Tool and Equipment Program 888-424-6857
1. P
Symptom Troubleshooting
CHARGING SYSTEM SYMPTOM TROUBLESHOOTING INDEX
CHARGING SYSTEM INDICATOR STAYS ON
Diagnostic procedure
1. Gauges Self-Diagnostic Function
CIRCUIT DIAGRAM
CHARGING SYSTEM CIRCUIT DIAGRAM
Without Keyles
Overhaul
ALTERNATOR OVERHAUL
Special Tools Required
Bearing Driver
Attachment, 42 x
47 mm
07746-0010300
Driver Handle, 15
x 135L
07749-0010000
Exploded View
1. Alternator Exploded View
Fig. 1: Alternator Ex
SEE MORE:
Radiator Fan High Speed Circuit Troubleshooting
1. Fuse check.
Check the following fuses.
Are the fuses OK?
YES
Reinstall the fuses, then go to step 2.
NO
Replace the fuse(s), and recheck. If the fuse(s) blows again, repair the
short to ground on the No. B12 (30
A), the No. B31 (7.5 A), and/or the No. C24 (7.5 A) fuse circuit(s).
2. Radiator
A/C Compressor Removal and Installation
Removal & Installation
NOTE:
Do not install the A/C compressor into a system unless you are
completely sure that the system is free of
contamination. Installing the A/C compressor into a contaminated system can
result in premature A/C
compressor failure.
If the A/C compressor is margina
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