For 1990-2009 cars

## Heat Excessive Heat Mode

Step | Action | Yes | No
--- | --- | --- | ---
1 | With the ignition switch in the ON position , turn the blower speed switch from OFF to each of the following positions:

1. LOW
2. MEDIUM 1
3. MEDIUM 2
4. HIGH
5. OFF

Does the blower motor speed increase at each speed level when blower speed selector switch is turned towards HIGH and then decrease when the switch is turned towards LOW?

Go to Step 2

Go to HVAC System Check

2 |

1. Set the mode control to the to HEAT position.
2. Set the blower speed to HIGH.
3. Set the temperature control to the hottest position.
4. Turn the ignition switch to the ON position.
5. Inspect for airflow out of the heater outlet.

Is there high airflow from the heater outlet?

Go to Step 3

Go to Step 4

3 |

1. Inspect the temperature control cable and linkage operation.
2. Repair or replace as necessary. Refer to Temperature Control Cable Replacement .

Is the repair complete?

Go to Step 5

--

4 |

1. Inspect the mode control cable and linkage operation.
2. Repair or replace as necessary. Refer to Mode Control Cable Replacement .

Is the repair complete?

Go to Step 5

--

5 | Perform the function test. Refer to Function Test . Is the repair complete? | System OK | --