DTC C2177/77: Initialization not Completed [08/2013 - ]: Description

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

Initialization is necessary if one of the following occurs:

The tire pressure warning ECU and receiver is replaced.
A tire pressure warning valve and transmitter is replaced.
Tires with different standard tire pressures are installed.
The tires are rotated.
A new vehicle is delivered.

DTC No.	DTC Detection Condition	Trouble Area
C2177/77	All conditions below are met: During initialization Tire pressure warning valve and transmitter is not in stop mode Signal is not received from tire pressure warning valve and transmitter for 20 minutes1 (10 minutes2) or more Vehicle speed is more than 37 km/h (23 mph) for 20 minutes1 (10 minutes2) or more	Tire pressure warning valve and transmitter Wire harness or connector Tire pressure warning ECU and receiver

DTC No.

DTC Detection Condition

Trouble Area

C2177/77

All conditions below are met:

During initialization
Tire pressure warning valve and transmitter is not in stop mode
Signal is not received from tire pressure warning valve and transmitter for 20 minutes*1 (10 minutes*2) or more
Vehicle speed is more than 37 km/h (23 mph) for 20 minutes*1 (10 minutes*2) or more

Tire pressure warning valve and transmitter
Wire harness or connector
Tire pressure warning ECU and receiver

*1: for FMVSS138 Type
*2: for ECE-R64 Type