2006 TOYOTA RAV4 wiring diagram

ENGINE IMMOBILISER – ENGINE IMMOBILISER SYSTEMEI–27
EI
DESCRIPTION
The transponder key coil receives key code signals from the transponder chip in the key grip. The coil
built into the transponder key amplifier amplifies the key code signals and outputs the signal to the
transponder key ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
DTC B2784 Antenna Coil Open / Short
DTC No. DTC Detection Condition Trouble Area
B2784 When transponder key coil is open or short• Transponder key ECU
• Transponder key amplifier
• Wire harness
1READ VALUE OF INTELLIGENT TESTER (TRANSPONDER KEY COIL)
B121682E05

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–35
EI
DESCRIPTION
This DTC is output when a communication error occurs between the transponder key amplifier and
transponder key ECU. Some possible reasons for the communication error are: 1) 2 or more ignition keys
are positioned too close together, or 2) noise is occurring in the communication line.
WIRING DIAGRAM
DTC B2797 Communication Malfunction No. 1
DTC No. DTC Detection Condition Trouble Area
B2797Keys are positioned too close to each other,
or noise occurred in communication line•Key
• Wire harness
• Transponder key amplifier
• Transponder key ECU
B121683E07

ENGINE IMMOBILISER – ENGINE IMMOBILISER SYSTEMEI–39
EI
DESCRIPTION
This DTC is output when one of the following occurs: 1) the ECM detects errors in its own
communications with the transponder key ECU; 2) the ECM detects errors in the communication lines; or
3) the ECU communication ID between the transponder key ECU and ECM is different and an engine
start is attempted. Before troubleshooting for this DTC, make sure no transponder key ECU DTCs are
present. If present, troubleshoot the transponder key ECU DTCs first.
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Delete the DTC (see page EI-18).
(b) Recheck for DTC.
OK:
B2799 output does not reoccur.
OK
NG
DTC B2799 Engine Immobiliser System Malfunction
DTC No. DTC Detection Condition Trouble Area
B2799One of following conditions is met:
• Error in communication between ECM
and transponder key ECU
• Error in communication lines
• Communication ID is different during
communication with transponder key
ECU• Wire harness
• Transponder key ECU
•ECM
1CHECK FOR DTC
B121684E04
NORMAL

CRUISE CONTROL – CRUISE CONTROL SYSTEMCC–23
CC
DESCRIPTION
Refer to the SFI system (see page ES-224).
WIRING DIAGRAM
Refer to the SFI system (see page ES-224).
INSPECTION PROCEDURE
Refer to the SFI system (see page ES-224).
DTC P0500/21 Vehicle Speed Sensor "A"
DTC P0503/23 Vehicle Speed Sensor Circuit
DTC No. DTC Detection Condition Trouble Area
P0500/21
P0503/23No vehicle speed sensor signal to ECM under
conditions (a) and (b) (2 trip detection logic):
(a) Cruise control system is operating
(b) Vehicle is being driven• Combination meter
• Vehicle speed sensor
• Vehicle speed sensor circuit
•ECM

CC–24CRUISE CONTROL – CRUISE CONTROL SYSTEM
CC
DESCRIPTION
While driving with the cruise control, if the ECM detects that the brake pedal is depressed, the cruise
control operation will be canceled. The stop light switch sends brake pedal status signals to the ECM.
When the brake pedal is not depressed, terminal ST1- is equal to the positive (+) battery voltage and
terminal STP is below 1 V. When the brake pedal is depressed, the ECM cancels cruise control operation.
The ECM outputs this DTC when the voltage of terminals ST1- and STP are both below 1 V for 0.5
seconds or more at the same time. The fail-safe function operates to enable normal driving even if there is
a malfunction in the stop light signal circuit.
HINT:
*: w/ Vehicle stability control system
WIRING DIAGRAM
DTC P0571/52 Stop Light Switch Circuit
DTC No. DTC Detection Condition Trouble Area
P0571/52 ECM detects malfunction of stop light switch
circuit under both of following conditions:
• Voltage of terminal STP is less than 1 V
for 0.5 seconds or more
• Voltage of terminal ST1- is less than 1 V
for 0.5 seconds or more• Stop light switch
• BRK relay circuit*
• Wire harness
•ECM
E124257E01

CC–32CRUISE CONTROL – CRUISE CONTROL SYSTEM
CC
DESCRIPTION
This circuit sends signals to the ECM depending on the cruise control switch condition. The battery
supplies positive (+) battery voltage to the cruise control switch. Then terminal CCS of the ECM receives
the voltage according to the switch condition.
WIRING DIAGRAM
INSPECTION PROCEDURE
(a) Check the DATA LIST for proper functioning of the cruise
control switch.
ECM
Cruise Control Switch Circuit
1READ VALUE OF INTELLIGENT TESTER (CRUISE CONTROL MAIN SWITCH)
E124659E01
Item Measurement Item / Display
(Range) Normal Condition Diagnostic Note
MAIN SW (MAIN) Main switch (Main CPU) / ON or
OFF ON: Main switch (Main CPU) is
ON
OFF: Main switch (Main CPU) is
OFF -
CANCEL SW CANCEL switch / ON or OFF ON: CANCEL switch is ON
OFF: CANCEL switch is OFF -
SET/COAST SW - / SET switch / ON or OFF ON: - / SET switch is ON
OFF: - / SET switch is OFF -

CC–36CRUISE CONTROL – CRUISE CONTROL SYSTEM
CC
DESCRIPTION
Connecting terminals TC and CG of the DLC3 enables DTCs to be read through blinking patterns of the
combination meter's CRUISE main indicator light.
HINT:
When a warning light of the combination meter blinks continuously, terminal TC of the DLC3 or an ECM
may have a ground short.
WIRING DIAGRAM
TC and CG Terminal Circuit
E110507E03