either a short or open in the ECM and TCM on the ECT circuit:
SPORTAGE(AL) >2001 > G 2.0 DOHC > Engine > Engine Control > P1115 Engine Coolant Temperature (ECT) Sensor Signal From ECU to TCU
Diagnostic Trouble Code Diagnosis Charts
P1115
Water temperature signal malfunction
Threshold Value ~ Circuit continuity: No voltage
Enable Conditions ~ NA
Time Requirements ~ Continuous
MIL Illumination ~ 2 driving cycle
Related Items
•
Short to GND or B+ between ECM and TCM on ECT line.
•
Open between ECM and TCM on ECT line.
STEP
INSPECTION
Y/N
ACTION
1
With ignition off, connect adapter cable #K99U-2103-G17 to BOB, disconnect C211 from ECM and C229 from TCM.
Connect vehicle C229 to adapter cable (leave adapter cable C229 disconnected from TCM).
Measure resistance between BOB-33 and C211-68 (< 1 ohm).
Is measured resistance less than 1 ohm?
YES
Go to step 2.
NO
Locate source of high resistance or open and repair as necessary.
2
Measure resistance between BOB-33 and GND (infinite resistance).
Is measured resistance infinite?
YES
Go to step 3.
NO
Locate source of short to GND and repair as necessary.
3
Turn ignition on and measure voltage at BOB-33 (0v).
Is measured voltage 0v?
YES
Thoroughly check for loose, bent or corroded terminals between ECM and TCM.
NO
Locate source of short to B+ and repair as necessary.
4
Clear codes and return vehicle to original condition. Verify any repairs by driving vehicle with KIA Data Pro connected to OBD-II connector and monitoring for pending codes (refer to section 3 of the KIA Data Pro Generic OBD-II Program Card reference manual).
Best I can do right now.... Philip