Inspection Procedure

1. Disconnect the cruise control ECU connector.
2. Turn the ignition switch to the ON position.
3. Measure the voltage between terminal OD of cruise control ECU and body ground.
Fig 1: Inspecting Terminal Voltage (OD-Body Ground)
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Standard: 

Fig 2: Voltage Reference Chart

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1. OK: CHECK AND REPLACE CRUISE CONTROL ECU ASSY (See  TERMINALS OF ECU  ) 
2. NG: GO TO NEXT STEP. 

1. Measure the voltage between terminal OD1 of ECM and body ground.
Fig 3: Inspecting Terminal Voltage (OD1-Body Ground)
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Standard: 

Fig 4: Voltage Reference Chart

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1. OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
2. NG: GO TO NEXT STEP. 

1. Disconnect the ECM connector.
2. Measure the resistance according to the value (s) in the table below.
Fig 5: Checking Harness And Connector (OD1-Body Ground)
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Standard (Check for short): 

1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (See  ELECTRONIC CIRCUIT INSPECTION PROCEDURE  ) 
2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE  )