CHECK FOR INTERMITTENT PROBLEMS
HINT:
Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the Techstream 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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System Diagram
How To Proceed With TroubleshootingTheft Deterrent System Communication Line High Fixation (B279A,B279A12)
DESCRIPTION
If the communication line (EFIO-IMI) to the transponder key ECU assembly is stuck
high (e.g. shorted to +B), the ECM stores this DTC.
DTC No.
DTC Detection Condition
Trouble Area
DTC Output Confirmation Operation
B279A*1
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Tire inflation pressure
■ Tire inflation pressure
The recommended cold tire inflation pressure and tire size is displayed on the
tire and loading information label.
Regular Cab and Double Cab models
Access Cab models
■ Inspection and adjustment procedure
1. Tire valve
2. Tire pressure gauge
Re ...
Turn Signal Switch Circuit
DESCRIPTION
The combination meter assembly receives the turn signal switch information and
controls the turn signal lights.
WIRING DIAGRAM
PROCEDURE
1.
READ VALUE USING TECHSTREAM (TURN SIGNAL SWITCH)
(a) Connect the Techstream to the DLC3.
(b) Turn the igni ...