FixVault

DTC 16 - Electronic-Controlled A/T Signal

The signal from the A/T CPU retards the ignition timing of the engine during A/T gear shifting, thus momentarily reducing torque output of the engine for smooth clutch operation inside the transmission and reduced shift check.

DTC 16 - ELECTRONIC-CONTROLLED A/T SIGNAL TROUBLE SHOOTING

DTC No. Detecting Condition(s) Trouble Area
16 Fault in communications between engine CPU and A/T CPU in the ECM ECM

If the ECM records the diagnostic trouble code "16", it prohibits the torque control of the A/T which performs smooth gear shifting.

Fig 1: DTC 16 - Diagnostic Flowchart
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