Honda HR-V: Under-Dash Subrelay Box Removal, Installation, and Test
Removal & Installation
1. Keyless Access Control Unit - Remove
2. Under-Dash Subrelay Box - Remove
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- Remove the under-dash subrelay box (A).
3. All Removed Parts - Install
- Install the parts in the reverse order of removal.
Test
1. Under-Dash Subrelay Box - Test
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The under-dash subrelay box is contains these relays:
- IG1A relay circuit
- IG1B relay circuit
- IG2 relay circuit
1. Test each relay circuit as shown:
IG1A relay, IG1B relay, and IG2 relay
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IG1A relay circuit
There should be continuity between terminals A1 and C3 (or B7), when 12 volt battery power is connected to terminal B3, and body ground is connected to terminal B1. There should be no continuity between terminals A1 and C3 (or B7) when power is disconnected.
IG1B relay circuit
There should be continuity between terminals A2 and C2 (or B6), when 12 volt battery power is connected to terminal B3, and body ground is connected to terminal B1. There should be no continuity between terminals A2 and C2 (or B6) when power is disconnected.
IG2 relay circuit
There should be continuity between terminals A1 and C4 (or B5), when 12 volt battery power is connected to terminal B4, and body ground is connected to terminal B1. There should be no continuity between terminals A1 and C4 (or B5) when power is disconnected.
2. If any of these relay circuit fails the test, replace the under-dash subrelay box.
READ NEXT:
Under-Hood Fuse/Relay Box Removal and Installation
Special Tools Required
Relay Puller 07AAC-000A2A1 or
07AAC-000A1A0
Removal & Installation
NOTE: The under-hood fuse/relay box is a part of the left engine compartment
wire harness, and it cannot
Fuse Relay Box Connector Locations
FUSE/RELAY BOX CONNECTOR LOCATIONS
12 Volt Battery Terminal Fuse Box
Under-Hood Fuse/Relay Box
*1: Without keyless access system
*2: With keyless access system
Auxiliary Under-Hood Relay Box A
*:
SEE MORE:
FTP Sensor Removal and Installation (KA/KC)
Removal & Installation
1. EVAP Canister Assembly - Remove - Refer to: EVAP Canister Removal and
Installation (AWD), or
EVAP Canister Removal and Installation (KA/KC)
2. FTP Senor - Remove
Disconnect the connector (A).
Remove the retainer (B), then remove the FTP sensor
(C).
3. All Removed
Engine Undercover Removal and Installation
Removal & Installation
1. Vehicle - Lift
2. Engine Undercover - Remove (For Some Models)
Remove the engine undercover (A).
3. Front Splash Shield - Remove
Remove the front splash shield (A).
4. All Removed Parts - Install
Install the parts in the reverse order of removal.
