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
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Symptom Troubleshooting
12 VOLT BATTERY SYMPTOM TROUBLESHOOTING - LOW OR DEAD 12 VOLT BATTERY
Low or Dead 12 Volt Battery
NOTE:
A 12 volt battery might be discharged under these conditions:
Driving a vehicle 6 miles (10 km) or less per day.
Leaving a vehicle idling with high electrical loads such as
headlight, sea
Cylinder Head Disassembly
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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