Heater/Air Conditioner Does Not Operate While Running; Heater/Air Conditioner Troubleshooting Flow Chart; Heater/Air Conditioner Detailed Troubleshooting - Honda 2007 CR-V Service Manual

Honda Remote Control Starter System Service Manual: 2007 CR-V

12.0 Heater/air conditioner does not operate while running

The following diagnosis can be used when trying to troubleshoot why the vehicle's HVAC system
does not work during a remote start.

12.1 Heater/air conditioner troubleshooting flow chart.

Use the key to turn on the
ignition switch and check for
basic operation.
Does it work properly?
YES
Check for IG2
Output/IG2 relay/Wire
harness condition.
Are they good?
YES
Replace the control
unit

12.2 Heater/Air Conditioner Detailed Troubleshooting.

1. Turn the ignition switch on and make sure that the heater and air conditioner work properly.
Does it work properly?
YES – Go to step 2.
NO – Refer to the Vehicle Service Manual to repair.
2. At the control unit connector, check for
continuity between the No. 16 (Blue) and the
NO. 14 (Black) terminals.
Is there continuity?
YES – Go to step 3.
NO – Repair the open circuit in the lead or
replace the control unit.
3. Connect the + probe of the voltmeter to the
No.4 terminal (Brown) and the – probe to the
No. 14 (Black) terminal.
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Table of Contents Table of Contents
Refer to the vehicle
NO
service manual to repair
the HVAC system
NO
Repair/replace
CONTROL UNIT CONNECTOR
CONTROL UNIT CONNECTOR
14 (BLACK): 16 BLUE: RELAY
GROUND
GROUND
(As viewed from wire side)
3 (BROWN): IG2 RELAY CONTROL
14 (BLACK): GROUND
(As viewed from wire s ide)