As monitoring the errors of several sensors and actuator circuit, TCM related problem and ECM error, if any problem occurs, ECM turns Engine Check Lamp ON at cluster to notify driver the occurrence of a problem. Generally, Engine Check Lamp turns ON at Ignition ON and turns OFF within couple of seconds after turning engine ON. If engine check lamp turns on during driving, perform diagnosis of engine system and auto-transaxle system.
P1670 is set when "IQA read /write error" occurs in EEP ROM where IQA data is saved. This code is due to incorrect input of IQA code to ECM.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
EEP ROM monitoring |
•
ECM internal error | ||
Enable Conditions |
•
IG key ON | |||
Threshold Value |
•
Incorrect input of IQA code to ECM. | |||
Diagnostic Time |
•
Immediately | |||
Fail Safe | Fuel cut | NO |
•
- | |
EGR Off | NO | |||
Fuel Limit | NO | |||
Check Lamp | BLINK | |||
