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:
DTC B12C6 Electric Steering Lock Switch C/D Monitor Circuit Failure
DTC (Power Control Unit)
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the
instructions in B-CAN System
Diagnosis Test Mode A - Refer to: Body Electrical Troubleshooting - B-CAN System
Diagnosis Test Mode
A - Initial Communication and DTC Checks.
1. Problem verification:
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Rear Power Window Motor Test
Test
1. Rear Door Panel - Remove
2. Rear Power Window Motor - Test
Test the motor in each direction by connecting 12 volt battery power and
ground to the connector (A) according to the table. When the motor stops
running, disconnect 12 volt battery power immediately. If the motor does not
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