COOL side
---
moving to COOL: battery voltage
---
Not
used
31
32
Not used
With ignition switch ON (II), and rear
window defogger switch ON: about 0
V
With ignition switch ON (II), and rear
window defogger switch OFF: battery
voltage
Signal for rear window
defogger relay
RED RR_DEF_RLY_CL-
CLIMATE CONTROL UNIT POWER AND GROUND CIRCUIT
TROUBLESHOOTING
Fig. 94: Climate Control Unit Power And Ground Circuit Troubleshooting Flow Chart
Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE:
Do this troubleshooting procedure only if sent here by symptom
troubleshooting.
1. Fuse check:
1. Check the following fuse.
ο‘
Fuse No. B22 (7.5 A)
Location Under-dash fuse/relay box
Is the fuse OK?
YES : Go to step 2.
NO : Replace the fuse, and recheck. If the fuse blows again, check for a short in the No. B22 (7.5 A) fuse
circuit.
2. Open wire check (IG2 A/C line):
ο‘
1. Disconnect the following connector.
Climate control unit 32P connector
ο‘
ο‘
2. Turn the ignition switch to ON (II).
3. Measure the voltage between test points 1 and 2.
Test condition IG ON (II)
Climate control unit 32P connector: disconnected
Test circuit IG2 A/C
Test point 1 Climate control unit 32P connector No. 12 (PNK)
Test point 2 Body ground
Fig. 95: Measuring Voltage Between Test Points 1 And 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES : The IG2 A/C wire is OK. Go to step 3.
NO : Repair an open in the wire between the No. B22 (7.5 A) fuse in the under-dash fuse/relay box and
the climate control unit.
3. Open wire check (GND line):
ο‘
ο‘
1. Turn the ignition switch to LOCK (0).
2. Check for continuity between test points 1 and 2.
Test condition IG LOCK (0)
Climate control unit 32P connector: disconnected
Test circuit GND
Test point 1 Climate control unit 32P connector No. 25 (BRN)
Test point 2 Body ground
Fig. 96: Checking For Continuity Between Test Points 1 And 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES : The GND wire is OK. REPLACE THE CLIMATE CONTROL UNIT .
NO : Check for an open in the wire between the climate control unit and body ground. If the wire is OK,
check for poor ground at G502.
DRIVER'S AIR MIX CONTROL MOTOR TEST
SPECIAL TOOL DESCRIPTION
Image
Description/Tool Number
Backprobe Set 07SAZ-001000A (2)
2024 Honda CR-V Owner's Manual
2023 Honda CR-V Owner's Manual
2021 Honda CR-V Owner's Manual
2018 Honda CR-V Owner's Manual
2015 Honda CR-V Owner's Manual
