DTC 16 A T Control Signal Malfunction
CIRCUIT DESCRIPTION
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
shock.
DTC No. Diagnostic Trouble Code Detecting Condition Trouble Area
16
Fault in communications between the engine CPU
ECM 16 Fault in communications between the engine CPU
and A/T CPU in the ECM ECM
If the ECM detects the diagnostic trouble code º16º in memory, it prohibits the torque control of the A/T which
performs smooth gear shifting.
INSPECTION PROCEDURE
Are there any otheer codes (besides Code 16) being output?
Repair engine control module.
Go to relevant diagnostic trouble code chart.
EG±418± ENGINE2JZ±GE ENGINE TROUBLESHOOTING
DTC 16 A T Control Signal Malfunction
CIRCUIT DESCRIPTION
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
shock.
DTC No.
Diagnostic Trouble Code Detecting Condition
Trouble Area
16
Fault in communications between the engine
CPU and A/T CPU in the ECM
ECM
If the ECM detects the diagnostic trouble code º16º in memory, it prohibits the torque control of the A/T which
performs smooth gear shifting.
INSPECTION PROCEDURE
Are there any other codes (besides Code 16) being output?
Go to relevant diagnostic trouble code chart.
Replace engine control module.
EG±524± ENGINE2JZ±GTE ENGINE TROUBLESHOOTING
