DESCRIPTION
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
PERFORM ACTIVE TEST USING TECHSTREAM (SECURITY INDICATOR LIGHT) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Key / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Smart Key
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
---|---|---|---|
Immobiliser Indicator |
Security indicator light |
OFF/ON |
- |
OK:
The security indicator light operates normally.
NG | ![]() |
GO TO STEP 3 |
|
2. |
CHECK SECURITY INDICATOR LIGHT OPERATION |
(a) When the immobiliser is set, check that the security indicator light blinks.*1
OK:
The security indicator light blinks normally.
(b) When the theft deterrent system is in the arming preparation state, check
that the security indicator light on (See page
).*2
OK:
The security indicator light is on normally.
Result
Result |
Proceed to |
---|---|
*1 is NG (*2 is OK) |
A |
*2 is NG (*1 is OK) |
B |
A | ![]() |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
B | ![]() |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
3. |
CHECK HARNESS AND CONNECTOR (SECURITY INDICATOR LIGHT (AIR CONDITIONING CONTROL ASSEMBLY) - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) |
(a) Disconnect the A33 security indicator light (air conditioning control assembly) connector.
(b) Disconnect the C29 certification ECU (smart key ECU assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A33-6 (LP) - C29-19 (IND)*1 |
Always |
Below 1 Ω |
A33-6 (LP) or C29-19 (IND) - Body ground*1 |
Always |
10 kΩ or higher |
A33-1 (GND) - Body ground*1 |
Always |
Below 1 Ω |
A33-12 (LP) - C29-19 (IND)*2 |
Always |
Below 1 Ω |
A33-12 (LP) or C29-19 (IND) - Body ground*2 |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
(a) Reconnect the C29 certification ECU (smart key ECU assembly) connector.
(b) Measure the voltage and check the pulse according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A33-6 (LP) - A33-1 (GND)*1 |
Engine switch off → engine switch on (IG) |
Pulse generation → Below 2 V |
A33-12 (LP) - A33-1 (GND)*2 |
Engine switch off → engine switch on (IG) |
Pulse generation → Below 2 V |
Result |
Proceed to |
---|---|
OK (for Automatic Air Conditioning System) |
A |
OK (for Manual Air Conditioning System) |
B |
NG |
C |
A | ![]() |
REPLACE SECURITY INDICATOR LIGHT (AIR CONDITIONING CONTROL ASSEMBLY) |
B | ![]() |
REPLACE SECURITY INDICATOR LIGHT (AIR CONDITIONING CONTROL ASSEMBLY) |
C | ![]() |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
ACC Monitor Malfunction (B2274)
DESCRIPTION
This DTC is stored when a malfunction in the ACC output circuit is detected.
The ACC output circuit is the circuit that goes from the ACC output terminal of
the certification ECU (smart key ECU assembly) to the ACC relay.
HINT:
When the cable is disconnected and reconnected to the ...
Freeze Frame Data
FREEZE FRAME DATA
CHECK FREEZE FRAME DATA
HINT:
The ECU records vehicle and driving condition information as freeze frame data
the moment a DTC is stored.
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: P ...
Operation Check
OPERATION CHECK
1. CHECK NAVIGATION SYSTEM NORMAL CONDITION
(a) If the symptom is applicable to any of the following, it is intended behavior,
and not a malfunction.
Symptom
Answer
A longer route than expected is chosen.
Depending on the road co ...