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Eric
Eric, Automotive Repair Shop Manager
Category: Kia
Satisfied Customers: 30270
Experience:  20+ yrs. experience as repair shop manager and technician.
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What does code p1614 mean in lamen terms looked it

Customer Question

what does code p1614 mean in lamen terms looked it up but still don't understand
Submitted: 5 years ago.
Category: Kia
Expert:  Eric replied 5 years ago.
Hi,

A communication line exists between the Engine Control Module (ECM) and the Transaxle Control Module (TCM). The sole purpose of this communication line is for the TCM to notify the ECM to activate the Malfunction Indicator Lamp (MIL) when a serious transaxle failure has occurred. ECM sets DTC P1614 if the ECM detects that the voltage is higher than threshold value.

This means that when the vehicle is powered up(ignition on) the ECM(engine control module) detects too high of a voltage from the TCM(transmission control module).

You are not going to be able to diagnose this at home unless you have a factory diagnostic scanner. The ONLY way to diagnose this is with a factory scanner to find out if voltage spike is coming from the TCM, the ECM, or wiring harness.

DO NOT attempt to backprobe anything with a multimeter. The ECM and TCM will be permanently damaged from trying this in order to diagnose without the REQUIRED factory scanner.


Expert:  Eric replied 5 years ago.

A communication line exists between the Engine Control Module (ECM) and the Transaxle Control Module (TCM). The sole purpose of this communication line is for the TCM to notify the ECM to activate the Malfunction Indicator Lamp (MIL) when a serious transaxle failure has occurred. ECM sets DTC P1614 if the ECM detects that the voltage is higher than threshold value.

This means that when the vehicle is powered up(ignition on) the ECM(engine control module) detects too high of a voltage from the TCM(transmission control module).

You are not going to be able to diagnose this at home unless you have a factory diagnostic scanner. The ONLY way to diagnose this is with a factory scanner to find out if voltage spike is coming from the TCM, the ECM, or wiring harness.

DO NOT attempt to backprobe anything with a multimeter. The ECM and TCM will be permanently damaged from trying this in order to diagnose without the REQUIRED factory scanner.