Honda Accord Quiz
Cooling and Heating Systems

On-Board Diagnostics

In this manual: Cooling and Heating Systems
Owner's Manual — 80Maintenance and Adjustments — 43Four-Cylinder Engines — 27V6 Engines — 34Engine General Overhaul and Major Repair — 35Cooling and Heating Systems — 29Fuel and Exhaust Systems — 21Engine Electrical Equipment — 23Engine Control — 315-speed manual transmission (MT) — 74-speed automatic transmission (AT) — 14Clutch and Drive Shafts — 22Brake System — 23Suspension and Steering — 31Body — 41Body Electrical Equipment — 36Electrical Circuit Diagrams — 11
~1min read

Standard Heating/Air Conditioning System
On the models covered by this Manual, circuit fault diagnosis of the heater/air conditioner control unit can be performed without using a scan tool.

Включите зажигание и, нажатием кнопки инициации режима замкнутой рециркуляции,

Turn the ignition on and press the recirculation mode button until the indicator lamp directly above it lights. The heater fan must be off.

Press the button again (the indicator lamp should go off) and hold it depressed. The indicator lamp lighting again indicates that self-diagnosis mode has been initiated. The lamp will now flash codes for basic faults detected in the system. One flash indicates a malfunction of the air mix control motor (door jammed, winding fault, or short circuit). Two flashes indicate a failure of the mode selection motor. Three flashes indicate faults related to an open or short circuit in the evaporator temperature sensor circuit, or an internal fault in the sensor assembly itself.

Test yourself

A quick Honda Accord quiz: every answer comes with an explanation and a link to the manual page.