No cabin heat

We do not have any information on the hybrid model. I have here the Insight Auto Climate control DTc retrieval procedure. Give it a try to check if you are able to retrieve any trouble codes.

HOW TO RETRIEVE A DTC
The climate control unit has a self-diagnostic function.
To run the self-diagnostic function, do the following:

1. Turn the ignition switch ON (II).

2. Press the AUTO button and then the OFF button.

3. Continue to hold both buttons down.
Fig. 6: Identifying Temperature Indicator

If there is any abnormality in the system, the temperature indicator will light up the segment (A through N) corresponding to the error. The temperature indicator will then alternate every second between displaying "88" (all segments lit) and the error code segment (A through N). To determine the meaning of the DTC, refer to the DTC
TROUBLESHOOTING INDEX. If there is no abnormality, the segments will not light up.
Fig. 7: Identifying Temperature Indicator

Canceling the self-diagnostic Function
Turn the ignition switch OFF to cancel the self-diagnostic function. After completing repair work, run the self-diagnostic function again to make sure that there are no other malfunctions.

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Question
Asked on December 19, 2010

2002 Honda Insight Hybrid with 286,000 miles
Automatic 2 Wheel Drive

2002 Honda Insight Hybrid Diag Routine
Nice return. So I run diags and I get a "C" error code, says outside temp sensor is open, check continuity between pin 1 and 5 of conn. P22. It's 5.4k ohm so I disconnect sensor and still get same reading? Pins 1 and 5 (conn. P22) are not shorted to ground. I jumper pins 1 and 2 of sensor conn. And get same reading across conn. P22 pins 1&5? I suspect parallel circuit w/heater core temp sensor (inside temp sensor). You did well with diag routine and hope to get answer on this. Thxs //pbr

Asked by pbr727

Here are the diagnostic procedures from our database.

DTC INDICATOR C: AN OPEN IN THE OUTSIDE AIR TEMPERATURE SENSOR CIRCUIT

NOTE: This code can cause the auto idle stop function not to work with the climate control on.

1. Remove the outside air temperature sensor.

2. Measure the resistance between the No. 1 and No. 2 terminals of the outside air temperature sensor.

* Dip the sensor in ice water, and measure resistance. Then pour warm water on the sensor, and check for a change in resistance.

* Is the resistance within the specifications shown on the graph?

YES - Go to step 3.
NO - Replace the outside air temperature sensor.

3. Disconnect climate control unit connector B (22P).

4. Check for continuity between the No. 1 terminal of climate control unit connector B (22P) and the No. 1 terminal of the outside air temperature sensor 2P connector.

Is there continuity?
YES - Go to step 5.
NO - Repair open in the wire between the climate control unit and the outside air temperature sensor.

Check for continuity between the No. 5 terminal of climate control unit connector B (22P) and the No. 2 terminal of the outside air temperature sensor 2P connector.

Is there continuity?

YES - Check for loose wires or poor connections at climate control unit connector B (22P) and at the outside air temperature sensor 2P connector. 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.

NO - Repair open in the wire between the climate control unit and the outside air temperature sensor.