Honda Civic. Manual — part 736

NO -Replace the mode control motor (see MODE CONTROL MOTOR
TEST ), or repair the mode control linkage or doors.

7. Check for continuity between the following terminals of the heater control

panel 24P connector and the mode control motor 7P connector.

CONTINUITY CHECK INDEX

Fig. 13: Checing Continuity Between Heater Control Connector & Mode
Control Motor Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 8.

24P

7P

14

1

15

2

2008 Honda Civic EX

2006-08 HVAC Heating - Civic (All Except Hybrid)

NO -Repair any open in the wires between the heater control panel and the
mode control motor.

8. Check for continuity between body ground and the heater control panel 24P

connector terminals No. 14 and 15 individually.

Fig. 14: Checking Continuity Between Ground & Heater Control Panel
Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Repair short to body ground in the wires between the heater control
panel and the mode control motor.

NO -Substitute a known-good heater control panel, and recheck. If the
symptom/indication goes away, replace the original heater control panel.

DTC INDICATOR 6: A PROBLEM IN THE BLOWER MOTOR CIRCUIT

1. Clear the DTC (see CLEAR THE DTCS ).
2. Turn the ignition switch to LOCK (0), and then ON (II).
3. Do the self-diagnostic with the heater control panel (see HOW TO USE THE

SELF-DIAGNOSTIC FUNCTION ).

2008 Honda Civic EX

2006-08 HVAC Heating - Civic (All Except Hybrid)

4. Check for DTCs.

Is DTC 6 indicated?

YES -Go to step 5.

NO -Intermittent failure, check for loose wires or poor connections on the
blower motor circuit.

5. Turn the ignition switch to LOCK (0).
6. Check the No. 9 (40 A) fuse in the under-hood fuse/relay box, and the No. 36

(10 A) fuse in the under-dash fuse/relay box.

Are the fuses OK?

YES -Go to step 7.

NO -Replace the fuses, and recheck.

7. Connect the blower motor 2P connector terminal No. 2 to body ground with a

jumper wire.

Fig. 15: Connecting Blower Motor 2P Connector Terminal No 2 To Body
Ground With Jumper Wire
Courtesy of AMERICAN HONDA MOTOR CO., INC.

8. Turn the ignition switch ON (II).

Does the blower motor run?

2008 Honda Civic EX

2006-08 HVAC Heating - Civic (All Except Hybrid)

YES -Go to step 9.

NO -Go to step 25.

9. Turn the ignition switch to LOCK (0).

10. Disconnect the jumper wire.
11. Disconnect the power transistor 4P connector.
12. Check for continuity between the power transistor 4P connector terminal No. 2

and body ground.

Fig. 16: Checking Continuity Between Power Transistor 4P Connector
Terminal No 2 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 13.

NO -Check for an open in the wire between the power transistor and body
ground. If the wire is OK, check for poor ground at G401 (see CONNECTOR
TO HARNESS INDEX ).

13. Connect the power transistor 4P connector terminals No. 2 and No. 4 with a

jumper wire.

2008 Honda Civic EX

2006-08 HVAC Heating - Civic (All Except Hybrid)