Check For Intermittent Problems [06/2016 - ]

HINT: 

A momentary interruption (open circuit) in the connectors and/or wire harness can be detected using the Data List function of the Techstream.

1. Turn the ignition switch off.
2. Connect the Techstream to the DLC3.
3. Turn the ignition switch to ON.
4. Turn the Techstream on.
5. Follow the directions on the Techstream to display the Data List and select areas where momentary interruption should be monitored.

   HINT: 

   • A momentary interruption (open circuit) cannot be detected for 3 seconds after the ignition switch is turned to ON (initial check).
   • If Error remains displayed for one of the items on the Techstream, check for continuity between the ECU and the item for which Error is displayed.
   • If a momentary interruption occurs and Error is displayed on the Techstream, Error will remain displayed on the Techstream for 1 second after the circuit returns to normal.
   ABS/VSC/TRAC
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   IG Voltage Value Decreased	IG voltage value decrease detection / Error or Normal	Error: Voltage low Normal: Normal	-
   IG Voltage Value Increased	IG voltage value increase detection / Error or Normal	Error: Voltage high Normal: Normal	-

6. While observing the screen, gently jiggle the connector or wire harness.

   OK

   Normal is displayed.

   HINT: 

   If the display changes, this indicates that there has been a momentary interruption (open circuit) in the connector and/or wire harness. In this case, repair or replace the connectors and/or wire harnesses as one of them is faulty.