INSPECTION PROCEDURE O-6: The washer fluid level switch signal is not sent to the ETACS-ECU.: Diagnosis

Required Special Tools: 

• MB991223: Test Harness Set
• MB991502: Scan Tool (MUT-II)
• MB991529: Diagnostic Trouble Code Check Harness

1. STEP 1. Check the washer fluid level switch. 
   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   SWITCH POSITION	TESTER CONNECTION	SPECIFIED CONDITION
   Upper position	1 - 2	Open circuit
   Lower position	1 - 2	Less than 2 ohms

   Q: Is the washer fluid level switch in good condition? 

   YES  : Go to Step 2.

   NO:  The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. The washer fluid level switch input signal should be able to be checked and the functions, which are described in the "TECHNICAL DESCRIPTION (COMMENT) ," should work normally.

   Fig 1: Identifying Connector A-32 - SEBRING

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   Fig 2: Identifying Connector A-32 - STRATUS

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   Fig 3: Checking Washer Fluid Level Switch

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2. STEP 2. Check the ground circuit to the washer fluid level switch. Test at washer fluid level switch connector A-32. 
   1. Disconnect the washer fluid level switch connector A-32 and measure the resistance available at the harness side of the connector.
      Fig 4: Identifying Connector A-32 - SEBRING

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      Fig 5: Identifying Connector A-32 - STRATUS

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   2. Measure the resistance between terminal 1 and ground.
      • The resistance should equal 2 ohms or less.

   Q: Is the measured resistance 2 ohms or less? 

   YES  : Go to  Step 5.

   NO:  Go to Step 3.

   Fig 6: Measuring Resistance Between Terminal 1 And Ground

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3. STEP 3. Check the washer fluid level switch connector A-32 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

   Q: Is washer fluid level switch connector A-32 in good condition? 

   YES  : Go to Step 4.

   NO:  Repair or replace the damaged component(s). Refer to , HARNESS CONNECTOR INSPECTION . The washer fluid level switch input signal should be able to be checked and the functions, which are described in the "TECHNICAL DESCRIPTION (COMMENT) ," should work normally.

   Fig 7: Identifying Connector A-32 - SEBRING

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   Fig 8: Identifying Connector A-32 - STRATUS

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4. STEP 4. Check the wiring harness between washer fluid level switch connector A-32 (terminal 1) and ground. 

   Q: Are the wiring harness between washer fluid level switch connector A-32 (terminal 1) and ground in good condition? 

   YES  : No action is necessary and testing is complete.

   NO:  The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. The washer fluid level switch input signal should be able to be checked and the functions, which are described in the "TECHNICAL DESCRIPTION (COMMENT) ," should work normally.

   Fig 9: Identifying Connector A-32 - SEBRING

   Courtesy of DAIMLERCHRYSLER CORPORATION
   Fig 10: Identifying Connector A-32 - STRATUS

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5. STEP 5. Check the washer fluid level switch connector A-32 and ETACS-ECU connector C-318 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

   Q: Are washer fluid level switch connector A-32 and ETACS-ECU connector C-318 in good condition? 

   YES  : Go to Step 6.

   NO:  Repair or replace the damaged component(s). Refer to , HARNESS CONNECTOR INSPECTION . The washer fluid level switch input signal should be able to be checked and the functions, which are described in the "TECHNICAL DESCRIPTION (COMMENT) ," should work normally.

   Fig 11: Identifying Connector A-32 - SEBRING

   Courtesy of DAIMLERCHRYSLER CORPORATION
   Fig 12: Identifying Connector A-32 - STRATUS

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   Fig 13: Identifying Connector C-318 - Harness Side

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6. STEP 6. Check the wiring harness between washer fluid level switch connector A-32 (terminal 2) and ETACS-ECU connector C-318 (terminal 57). 
   Fig 14: Identifying Connector A-32 - SEBRING

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   Fig 15: Identifying Connector A-32 - STRATUS

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   Fig 16: Identifying Connector C-318

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   NOTE: Also check intermediate connectors C-05 and C-209 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If intermediate connectors C-05 or C-209 are damaged, repair or replace the damaged component(s) as described in , HARNESS CONNECTOR INSPECTION .

   Q: Are the wiring harness between washer fluid level switch connector A-32 (terminal 2) and ETACS-ECU connector C-318 (terminal 57) in good condition? 

   YES  : Replace the ETACS-ECU. The washer fluid level switch input signal should be able to be checked and the functions, which are described in the "TECHNICAL DESCRIPTION (COMMENT) ," should work normally.

   NO:  The wiring harness may be damaged or the connector(s) may have loose, corroded or damaged terminals, or terminals pushed back in the connector. Repair the wiring harness as necessary. The washer fluid level switch input signal should be able to be checked and the functions, which are described in the "TECHNICAL DESCRIPTION (COMMENT) ," should work normally.

   Fig 17: Identifying Connector C-05

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   Fig 18: Identifying Connector C-209

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