Toyota Corolla Cross: Lost Communication with ECM/PCM "A" Missing Message (U010087,...,U016387)
	
						
			DESCRIPTION
 These DTCs are stored when the CAN communication system is malfunctioning.
   | DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | 
  | U010087 | Lost Communication with ECM/PCM "A" Missing Message | Diagnosis Condition: 
			IG voltage 8.5 V or higher
 Malfunction Status: 
			No communication with ECM
 Detection Time: 
			Continuously for 10 seconds or more
 | 
			CAN communication system
ECM
Air conditioning amplifier assembly
 | Memorized | 
  | U013187 | Lost Communication with Power Steering Control Module Missing Message | Diagnosis Condition: 
			IG voltage 8.5 V or higher
 Malfunction Status: 
			No communication with power steering ECU assembly
 Detection Time: 
			Continuously for 10 seconds or more
 | 
			CAN communication system
Power steering ECU assembly
Air conditioning amplifier assembly
 | Memorized | 
  | U014087 | Lost Communication with Body Control Module Missing Message | Diagnosis Condition: 
			IG voltage 8.5 V or higher
 Malfunction Status: 
			No communication with main body ECU (multiplex network body ECU)
			 Detection Time: 
			Continuously for 10 seconds or more
 | 
			CAN communication system
Main body ECU (multiplex network body ECU)
Air conditioning amplifier assembly
 | Memorized | 
  | U015587 | Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message | Diagnosis Condition: 
			IG voltage 8.5 V or higher
 Malfunction Status: 
			No communication with combination meter assembly
 Detection Time: 
			Continuously for 10 seconds or more
 | 
			CAN communication system
Combination meter assembly
Air conditioning amplifier assembly
 | Memorized | 
  | U016387 | Lost Communication with Navigation Control Module Missing Message | Diagnosis Condition: 
			IG voltage 8.5 V or higher
 Malfunction Status: 
			No communication with radio and display receiver assembly
 Detection Time: 
			Continuously for 10 seconds or more
 | 
			CAN communication system
Radio and display receiver assembly
Air conditioning amplifier assembly
 | Memorized | 
 
 PROCEDURE
 
 (a) Check for DTCs.
 Body Electrical > Air Conditioner > Trouble Codes 
  | Result | Proceed to | 
  | DTC U010087, U013187, U014087, U015587 or U016387 is output | A | 
  | DTCs are not output | B | 
  | None of the above conditions are met | C | 
 
 
  | A | .gif)  |  GO TO CAN COMMUNICATION SYSTEM  | 
 
 
  | B | .gif)  |  USE SIMULATION METHOD TO CHECK  | 
 
 
  | C | .gif)  |  GO TO DIAGNOSTIC TROUBLE CODE CHART  | 
 
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   DESCRIPTION The blower motor with fan sub-assembly is operated by signals from the air conditioning amplifier assembly. Blower motor speed signals are transmitted in accordance with changes in the dut
   
   
 
	
   DESCRIPTION The thermistor assembly is installed in front of the cooler condenser assembly to detect the ambient temperature, which is used to control the air conditioning system. The thermistor assem
   
   
 
	
   DESCRIPTION If none of the switch indicators on the air conditioning control assembly illuminate, the following factors may be the cause.    
	Symptom   Factor     
		A/C switch indicator does not i
   
   
 
   SEE MORE:
	
   DESCRIPTION    
	DTC No.   Detection Item   
	DTC Detection Condition   Trouble Area   
	Warning Indicate   Test Mode / Check Mode     
		B005200   Passenger Seat Belt Sensor Circuit Undetermined Failure   
		When it is determined that the specified number of times or more is not achieved after
   
   
 
	
   INSPECTION
PROCEDURE
1. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY
	
		
		(a) Measure the resistance according to the value(s) in the table below.
		Standard Resistance: 
		
			
				
				Tester Connection
				
				
				Condition
				
				
				Specified Condition