2006 TOYOTA RAV4 ignition

ENGINE IMMOBILISER – ENGINE IMMOBILISER SYSTEMEI–21
EI
DATA LIST / ACTIVE TEST
1. READ DATA LIST
HINT:
Using the intelligent tester's DATA LIST allows switch,
sensor, actuator and other item values to be read without
removing any parts. Reading the DATA LIST early in
troubleshooting is one way to save time.
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON and turn the tester ON.
(c) Select the following menu items: DIAGNOSIS /
OBD/MOBD / IMMOBILISER / DATA LIST.
(d) Check the results by referring to the table below.
Transponder key ECU:
ItemMeasurement Item / Display
(Range)Normal Condition Diagnostic Note
KEY SWUnlock warning switch signal /
ON or OFFON: Key is in ignition key cylinder
OFF: No key is in ignition key
cylinder-
IG SW Ignition switch signal / ON or OFFON: Ignition switch ON (IG or
ACC)
OFF: Ignition switch OFF-
IMMOBILISERImmobiliser system status / SET
or UNSETSET: No key is in ignition key
cylinder
UNSET: Key is in ignition key
cylinder-
PERMIT (START)Engine starting control / OK or
NGOK: Engine start is permitted
NG: Engine start is not permitted-
RESPONSETransponder chip data / NG or
OKNG: Data error
OK: Data OK-
FRAME ERRORTransponder chip data / NG or
OKNG: Data error
OK: Data OK-
SERIAL NUMBERTransponder chip data / NG or
OKNG: Data error
OK: Data OK-
ENCRYPT CODETransponder chip data / NG or
OKNG: Data error
OK: Data OK-
STATUSTransponder chip data / NG or
OKNG: Data error
OK: Data OK-
BCCTransponder chip signal / NG or
OKNG: Incorrect data sent
OK: Correct data sent-
SUB KEYSub-key code signal / MATCH or
NOMATCHMATCH: Registered sub-key
code is sent
NOMATCH: Unmatched sub-key
code is sent-
MASTER KEYMaster key code signal / MATCH
or NOMATCHMATCH: Registered master key
code is sent
NOMATCH: Unmatched master
key code is sent-
REGIST SUB CODENumber of registered sub-keys /
min.: 0, max.: 15Number of registered sub-keys -
REGIST MAS CODENumber of registered master
keys / min.: 0, max.: 15Number of registered master
keys-
REG CODE SPACEKey registration code memory
space full / NOTFULL or FULLNOTFULL: Possible to register
more key codes
FULL: Cannot register any more
key codes-

EI–22ENGINE IMMOBILISER – ENGINE IMMOBILISER SYSTEM
EI
2. PERFORM ACTIVE TEST
HINT:
Performing the intelligent tester's ACTIVE TEST allows
relay, VSV, actuator and other items to be operated
without removing any parts. Performing the ACTIVE
TEST early in troubleshooting is one way to save time.
The DATA LIST can be displayed during the ACTIVE
TEST.
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON and turn the tester ON.
(c) Select the following menu items: DIAGNOSIS /
OBD/MOBD / IMMOBILISER / ACTIVE TEST.
(d) Perform the ACTIVE TEST by referring to the table
below.
Transponder key ECU:
+B+B judgment / NORMAL or
BREAKNORMAL: Battery supply is
normal
BREAK: Battery supply is
malfunctioning-
ANTENNA COILTransponder key coil condition /
NORMAL or FAILNORMAL: Transponder key coil
is normal
FAIL: Transponder key coil is
malfunctioning- ItemMeasurement Item / Display
(Range)Normal Condition Diagnostic Note
Item Test Details Diagnostic Note
SECURITY INDIC Turns security indicator light / ON or OFF -

EI–24ENGINE IMMOBILISER – ENGINE IMMOBILISER SYSTEM
EI
DESCRIPTION
This DTC is output if the transponder key ECU does not detect that the unlock warning switch is ON even
when the ignition switch is ON. Under normal conditions, the unlock warning switch is ON when the
ignition switch is ON.
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON with a key that cannot start
the engine.
(c) On the intelligent tester, enter the following menus:
DIAGNOSIS / OBD/MOBD / IMMOBILISER / DATA LIST
/ KEY SW. Read the result.
Transponder key ECU:
OK:
ON (key is in ignition key cylinder) appears on the
screen.
DTC B2780Push Switch / Key Unlock Warning Switch Mal-
function
DTC No. DTC Detection Condition Trouble Area
B2780Unlock warning switch ON is not detected
when ignition switch is ON• Transponder key ECU
• Unlock warning switch
• Wire harness
1READ VALUE OF INTELLIGENT TESTER (UNLOCK WARNING SWITCH)
B110397E06
ItemMeasurement Item / Display
(Range)Normal Condition Diagnostic Note
KEY SWUnlock warning switch signal /
ON or OFFON: Key is in ignition key cylinder
OFF: No key is in ignition key
cylinder-

EI–28ENGINE IMMOBILISER – ENGINE IMMOBILISER SYSTEM
EI
(b) Turn the ignition switch ON with a key that cannot start
the engine.
(c) On the intelligent tester, enter the following menus:
DIAGNOSIS / OBD/MOBD / IMMOBILISER / DATA LIST
/ ANTENNA COIL. Read the result.
Transponder key ECU:
OK:
NORMAL (Transponder key coil is normal) appears
on the screen.
OK
NG
(a) Disconnect the E46 ECU connector.
(b) Disconnect the E5 amplifier connector.
(c) Measure the resistance of the wire harness side
connectors.
Standard resistance
NG
OK
ItemMeasurement Item / Display
(Range)Normal Condition Diagnostic Note
ANTENNA COILTransponder key coil condition /
NORMAL or FAILNORMAL: Transponder key coil
is normal
FAIL: Transponder key coil is
malfunctioning-
REPLACE TRANSPONDER KEY ECU
2CHECK WIRE HARNESS (TRANSPONDER KEY ECU - TRANSPONDER KEY AMPLIFIER)
B110403E14
Tester Connection Specified Condition
E46-14 (VC5) - E5-1 (VC5)
Below 1
E46-15 (CODE) - E5-4 (CODE)
E46-4 (TXCT) - E5-5 (TXCT)
E46-5 (AGND) - E5-7 (AGND)
E46-14 (VC5) or E5-1 (VC5) - Body
ground
10 k
or higher E46-15 (CODE) or E5-4 (CODE) -
Body ground
E46-4 (TXCT) or E5-5 (TXCT) - Body
ground
E46-5 (AGND) or E5-7 (AGND) - Body
ground
REPAIR OR REPLACE HARNESS AND
CONNECTOR
REPLACE TRANSPONDER KEY AMPLIFIER

EI–30ENGINE IMMOBILISER – ENGINE IMMOBILISER SYSTEM
EI
DESCRIPTION
This DTC is output when a key with an incomplete key code is inserted into the ignition key cylinder.
INSPECTION PROCEDURE
(a) Clear the DTC (see page EI-18).
(b) Reregister the key code with the transponder key ECU
(see page EI-5)
(c) Check that the engine starts with the key.
OK:
Engine starts.
NG
OK
DTC B2794 Unmatched Encryption Code
DTC No. DTC Detection Condition Trouble Area
B2794 Key with incomplete key code is inserted Key
1REREGISTER KEY
REPLACE KEY
END

ENGINE IMMOBILISER – ENGINE IMMOBILISER SYSTEMEI–31
EI
DESCRIPTION
This DTC is output when a key code that has not been registered in the transponder key ECU is inserted
into the ignition key cylinder.
INSPECTION PROCEDURE
(a) Clear the DTC (see page EI-18).
(b) Reregister the key code with the transponder key ECU
(see page EI-5)
(c) Check that the engine starts with the key.
OK:
Engine starts.
NG
OK
DTC B2795 Unmatched Key Code
DTC No. DTC Detection Condition Trouble Area
B2795 Key with unregistered key code is inserted Key
1REREGISTER KEY
REPLACE KEY
END

EI–32ENGINE IMMOBILISER – ENGINE IMMOBILISER SYSTEM
EI
DESCRIPTION
When a key is inserted into the ignition key cylinder but no communication occurs between the key and
transponder key ECU, DTC B2796 is output. When a key is inserted into the ignition key cylinder but a
communication error occurs between the key and transponder key ECU, DTC B2798 is output.
WIRING DIAGRAM
DTC B2796 No Communication in Immobiliser System
DTC B2798 Communication Malfunction No. 2
DTC No. DTC Detection Condition Trouble Area
B2796 No communication• Transponder key ECU
•Key
• Wire harness
• Transponder key amplifier
B2798 Communication error Key
B121682E05

ENGINE IMMOBILISER – ENGINE IMMOBILISER SYSTEMEI–33
EI
INSPECTION PROCEDURE
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON with a key that cannot start
the engine.
(c) On the intelligent tester, enter the following menus:
DIAGNOSIS / OBD/MOBD / IMMOBILISER / DATA LIST
/ IMMOBILISER. Read the result.
Transponder key ECU:
OK:
UNSET (key is in ignition key cylinder) appears on
the screen.
OK
NG
(a) Check whether the engine starts with the vehicle's other
keys.
OK:
Engine starts.
NG
OK
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch ON with a key that cannot start
the engine.
(c) On the intelligent tester, enter the following menus:
DIAGNOSIS / OBD/MOBD / IMMOBILISER / DATA LIST
/ ANTENNA COIL. Read the result.
Transponder key ECU:
1READ VALUE OF INTELLIGENT TESTER (ENGINE IMMOBILISER SYSTEM)
ItemMeasurement Item / Display
(Range)Normal Condition Diagnostic Note
IMMOBILISERImmobiliser system status / SET
or UNSETSET: No key is in ignition key
cylinder
UNSET: Key is in ignition key
cylinder-
REPLACE TRANSPONDER KEY ECU
2CHECK WHETHER ENGINE STARTS WITH OTHER KEY
REREGISTER OR REPLACE KEY THAT
CANNOT START ENGINE
3READ VALUE OF INTELLIGENT TESTER (TRANSPONDER KEY COIL)
ItemMeasurement Item / Display
(Range)Normal Condition Diagnostic Note
ANTENNA COILTransponder key coil condition/
NORMAL or FAILNORMAL: Transponder key coil
is normal
FAIL: Transponder key coil is
malfunctioning-