Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Echo 2000-2002 Approved techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 02echorm di theft tailligh
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DI-427
DIAGNOSTICS - THEFT DETERRENT SYSTEM
DI021-18
Taillight Control Relay Circuit
CIRCUIT DESCRIPTION
When the theft deterrent system is activated, it causes the Tr in the ECU to switch ON and OFF at approxi-
mately 0.4 sec. intervals. This switches the taillight control relay ON and OFF, thus flashing the taillights (See
the wiring diagram below).
In this condition, if any of the following operations is done, the Tr in the ECU goes OFF and the taillight control
relay switches OFF, thus stopping the taillights flashing:
(1) Unlock the front LH or RH door with a key.
(2) Turn the ignition switch to IG or ON position.
(3) Unlock the doors with the wireless door lock control system.
(4) Wait for approximately 60 seconds.
WIRING DIAGRAM
Theft Deterrent
(*1) G-B ECU
13 (*1) G-W Taillight Relay 11
+B T Light 1 2 G-B
Control T6 TAIL
OFF Instrument Panel J/B
Switch 3 5 G
TAIL 1 TAIL 4
HEAD 1C 1M
G-W 9 1M
10
(*1) B Instrument
(*2) B-G Panel J/B
ALT 9 1S
4 J10 J/C D G
W-B FL Block
Battery D G D G
R6 4 R7
4
Taillight Taillight
LH RH
(Rear Comb. (Rear Comb.
Light LH) 6 Light RH) 6
W-B W-B
IF *1: Puerto Rico BI
*2: Except Puerto Rico
I13716
2002 ECHO (RM884U)
Author : Date : 597
DI-428
DIAGNOSTICS - THEFT DETERRENT SYSTEM
INSPECTION PROCEDURE
HINT:
The flow chart below is based on the premise that the taillights light up normally whenever the light control
switch is operated. If taillight operation is not normal when the light control switch is operated, proceed to
troubleshooting on page BE-2 .
1 Check voltage between terminal TAIL of theft deterrent ECU connector and body
ground.
PREPARATION:
LOCK (a) Remove the glove compartment door.
(b) Disconnect the theft deterrent ECU connector.
CHECK:
Disconnect
Measure voltage between terminal TAIL of theft deterrent ECU
connector and body ground.
OK:
(+) (-)
Voltage: 10 - 14 V
TAIL
I02922
NG Check and repair harness and connector be-
tween theft deterrent ECU and taillight control
relay (See page IN-29 ).
OK
Check and replace theft deterrent ECU.
2002 ECHO (RM884U)
Author : Date : 598
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