With Navigation System
- Check the No. 3 (7.5A) fuse in the driver's under-dash fuse/relay box.
Is the fuse OK?
- YES - Go to step 2.
- NO - Replace the fuse and recheck.
- Disconnect the climate control panel 16P connector.
- Turn the ignition switch ON (II).
- Measure the voltage between the No. 6 terminal of the climate control panel 16P connector and body ground.Fig 1: Measuring Voltage Between No. 6 Terminal Of Climate Control Panel 16P Connector & Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
- YES - Go to step 5.
- NO - Repair open in the wire between the No. 3 fuse in the driver's under-dash fuse/relay box and the climate control panel.
- Turn the ignition switch OFF.
- Disconnect climate control unit connectors A (16P) and B (26P).
- Check for continuity between the following terminals of climate control panel 16P connector and climate control unit connectors A (16P) and B (26P).CLIMATE CONTROL PANEL CONNECTOR-TO-CLIMATE CONTROL CONNECTORS CONTINUITY CHART
Climate Control Panel 16P Connector Terminal Climate Control Unit Connectors A (16P) Terminal No. 4 No. 11 No. 5 No. 13 No. 13 No. 12 CLIMATE CONTROL PANEL CONNECTOR-TO-CLIMATE CONTROL CONNECTORS CONTINUITY CHARTClimate Control Panel 16P Connector Terminal Climate Control Unit Connectors B (26P) Terminal No. 7 No. 2 No. 11 No. 160 Fig 2: Checking Continuity Between Following Terminals Of Climate Control Panel 16P Connector & Climate Control Unit Connectors A (16P).Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 3: Checking Continuity Between Following Terminals Of Climate Control Panel 16P Connector & Climate Control Unit Connectors B (26P)Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
- YES - Go to step 8.
- NO - Repair any open in the wire(s) between the climate control panel and climate control unit.
- Check for continuity between the No. 4, 5, 7, 11 and 13 terminals of the climate control panel 16P connector and body ground individually.Fig 4: Checking Continuity Between No. 4, 5, 7, 11 & 13 Terminals Of Climate Control Panel 16P Connector & Body Ground Individually
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
- YES - Repair any short to body ground in the wire(s) between the climate control panel and the climate control unit.
- NO - Check for loose wires or poor connections at the climate control panel 16P connector, If the connections are good substitute a known-good, climate control panel and go to step 9.
- Reconnect the climate control panel 16P connector.
- Reconnect climate control unit connectors A (16P) and B (26P).
- Turn the ignition switch ON (II) and check the climate control panel display.
Does the climate control panel display work?
- YES - Repair is complete.
- NO - Check for loose wires or poor connections at climate control unit connectors A (16P) and B (26P) If the connections are good, substitute a known good climate control unit, and recheck, If the symptom/indication goes away, replace the original climate control unit.