Toyota Corolla (E120): Ecm/pcm processor
Dtc p0606 ecm/pcm processor
Monitor description
The ecm continuously monitors its internal circuits. This self–check insures that the ecm is functioning properly.
If a malfunction is detected, the ecm will set the appropriate dtc and illuminate the mil.
The two cpus, main and sub cpu inside the ecm, perform continuous mutual monitoring. If there is difference between outputs from the two cpus that deviates from standard level ranges, the ecm concludes that there is a fault and sets a dtc.
Monitor strategy
Typical enabling conditions
Typical malfunction thresholds
Inspection procedure
Hint
: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air–fuel ratio was lean or rich, etc. At the time of the malfunction.
Replace ecm
Other materials:
Toyota Safety Sense 3.0 software
update
It is necessary to enter a
connected services contract,
provided by Toyota, to
use these functions. For
details, contact your Toyota
dealer.
WARNING
■For safe use
When the Toyota Safety Sense
3.0 software is updated, the operating
methods of functions may
change. Using this system without
knowing ...
How to proceed with troubleshooting
1 Vehicle brought to workshop
2 Customer problem analysis
3 Check and clear dtc
4 Problem symptom confirmation
Symptom does not occur (go to
step 5)
5 Symptom simulation
6 Dtc check
7 Dtc chart
8 Problem symptoms table
9 Circuit inspection
10 Confirmation test
End
...
Malfunction in fuel receiver gauge
Wiring diagram
Inspection procedere
1 Inspect fuel sender gage assy
Disconnect the connector fuel sender gauge.
check the float position between e and f and measure
the resistance between terminals 2 and 3 of the connector.
Check that the resistance value changes continuously.
S ...