INSPECTION PROCEDURE 5: Blower Fan and Motor does not Stop Turning.: Diagnosis

WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.

STEP 1. Check the harness wire between blower fan and motor connector C-20, resistor connector C-19, and blower switch connector C-127.
Q: Is the harness wire between blower fan and motor connector C-20, resistor connector C-19, and blower switch connector C-127 in good condition?

YES : Go to Step 2.

NO: Repair it. Then go to Step 4.

Fig 1: Identifying Connector C-19
Courtesy of DAIMLERCHRYSLER CORPORATION

STEP 2. Check the blower relay continuity.

Follow the table below to check the blower relay for continuity.

RELAY CHECK

BATTERY VOLTAGE	TESTER CONNECTION	SPECIFIED CONDITION
Not applied	4 - 5	Open circuit
Connect terminal 1 to the positive battery terminal Connect terminal 3 to the negative battery terminal	4 - 5	Less than 2 ohms

Q: Is the blower relay continuity in good condition?

YES : Go to Step 3.

NO: Replace the blower relay. Then go to Step 4.

Fig 2: Checking Blower Relay

Courtesy of DAIMLERCHRYSLER CORPORATION

STEP 3. Check the blower switch continuity.

Follow the table below to check the blower relay for continuity.

BLOWER SWITCH CHECK

SWITCH POSITION	TESTER CONNECTION (CONNECTOR A)	SPECIFIED CONDITION
0 (OFF)	1 - 3, 3 - 4, 3 - 5, 3 - 6	Open circuit
1 (LO)	3 - 5	Less than 2 ohms
2 (ML)	1 - 3	Less than 2 ohms
3 (MH)	3 - 6	Less than 2 ohms
4 (HI)	3 - 4	Less than 2 ohms

Fig 3: Checking Blower Switch

Courtesy of DAIMLERCHRYSLER CORPORATION

Q: Is the blower switch continuity in good condition?

YES : Go to Step 4.

NO: Replace. Then go to Step 4.

STEP 4. Retest the system.
Q: Does the blower motor stop turning?

YES : The procedure is complete. (If no malfunctions are found in all steps, an intermittent malfunction is suspected. /Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS .)

NO: Go to Step 1.