Toyota CH-R Service Manual: Problem Symptoms Table

Toyota CH-R Service Manual / Door Lock / Wireless Door Lock Control System(w/o Smart Key System) / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Symptom	Suspected Area	Link
Only wireless control function is inoperative	Proceed to "Only wireless control function is inoperative"
Only answer-back function does not operate properly	Proceed to "No answer-back"
Only automatic lock function does not operate properly	Perform operation check
	Key reminder warning system
	Lighting system (front door courtesy light switch circuit)
	Lighting system (rear door courtesy light switch circuit)
	Main body ECU (multiplex network body ECU)	-
Only illuminated entry function does not operate	Perform operation check
	Lighting system
	Main body ECU (multiplex network body ECU)	-
Only door ajar warning function does not operate*1	Perform operation check
	Lighting system (Door courtesy switch circuit)
	Main body ECU (Multiplex network body ECU)	-
Only panic alarm function does not operate*1	Perform operation check
	Lighting system (Int) (Interior lights)
	Lighting system (EXT) (Headlights, taillights, hazard warning lights)
	horn system
	Instrument panel junction block assembly	-
	Main body ECU (Multiplex network body ECU)	-
When returning to the vehicle, although door unlock operation was not performed, doors were in an unlocked state.	Proceed to "Improper Operation"
When returning to the vehicle, although door lock operation was not performed, doors were in a locked state.	Proceed to "Improper Operation"

*1: w/ Toyota Safety Sense P

Customize Parameters

CUSTOMIZE PARAMETERS CUSTOMIZE WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Entry and Start System) HINT: The following items can be customized. NOTICE: When the customer requests a change in a ...

Diagnosis System

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