Last Modified: 4-30-2014 6.6 C Doc ID: RM0000018MZ001X agn Model Year: 2006 Model: LX470 Prod Date Range: [05/2005 - ] Title: AIR CONDITIONING: AIR CONDITIONING SYSTEM: 14; Engine Coolant Temperature Communication Circuit; 2006 MY LX470 [05/2005 - ] DTC 14 Engine Coolant Temperature Communication Circuit DESCRIPTION This sensor detects the engine coolant temperature and sends the appropriate signals to the ECM. These signals are used for warm up control when the engine is cold. DTC NO.
DETECTION ITEM TROUBLE AREA 14 Open or short in engine coolant temperature sensor circuit Engine coolant temperature sensor Harness or connector between engine coolant temperature sensor and ECM Harness or connector between ECM and A/C amplifier ECM A/C amplifier WIRING DIAGRAM INSPECTION PROCEDURE PROCEDURE CHECK FOR DTC 1. (a) Is DTC P0115, P0117 or P0118 output? Go to ENGINE YES TROUBLESHOOTING NO CHECK WIRE HARNESS (ECM - AIR CONDITIONING AMPLIFIER) 2. cardi YES Go to ENGINE TROUBLESHOOTING