DTC P1702 (No.52): Internal Control Module Memory Check Sum Error
DTC Detecting Condition and Trouble Area
DTC detecting condition Trouble area
Calculation of current data stored in TCM is not correct comparing with pre-stored checking data in TCM. TCM
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTC in TCM memory.
3) After 10 seconds passed from turning ignition switch ON, check DTC.
Step Action YES NO
Is DTC P1702 detected after performing “DTC Confirmation Procedure”?
Faulty TCM.
Replace TCM.
Could be a temporary malfunction of TCM.