Toyota Yaris: Sfi System / Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS
HINT:
Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the GTS when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic.
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Clear the DTCs.
Click here
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Change the ECM from normal mode to check mode using the GTS.
Click here
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Perform a simulation test.
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Check and wiggle the harness(es), connector(s) and terminal(s).
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CAUTION / NOTICE / HINT HINT: *: Use the GTS. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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2. CUSTOMER PROBLEM ANALYSIS
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3...
CAUTION / NOTICE / HINT When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out for all circuits considered to be possible causes of the problem...
Other information:
REMOVAL PROCEDURE 1. REMOVE PIN HOLD CLIP (a) Apply protective tape around the front bumper assembly. HINT: Use the same procedure for the RH side and LH side.
Protective Tape (b) Using a screwdriver with its tip wrapped in protective tape, disengage the claws to remove the 2 pin hold clips...
DESCRIPTION Detection Item Symptom Trouble Area Headup Display Communication Stop Mode Communication stop for "Head Up Display" is indicated on the "Communication Bus Check" screen of the GTS. Click here
Meter mirror sub-assembly branch line or connector
Power source circuit of meter mirror sub-assembly
Meter mirror sub-assembly ground circuit
Meter mirror sub-assembly
WIRING DIAGRAM
CAUTION / NOTICE / HINT CAUTION: When performing the confirmation driving pattern, obey all speed limits and traffic laws...
Categories
Stop the vehicle completely.
Manual transaxle:
Shift into neutral and set the parking brake.
Automatic transaxle:
Shift the selector lever to the P position and set the parking brake.
Press the push button start to turn off the engine. The ignition position is
off.
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