DESCRIPTION
Detection Item |
Symptom |
Trouble Area |
---|---|---|
ECM Communication Stop Mode |
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
HINT:
PROCEDURE
1. |
CHECK CAN BUS WIRE FOR DISCONNECTION (ECM MAIN WIRE) |
(a) Turn the ignition switch off.
(b) for 1AR-FE engine:
(1) Disconnect the connector of the ECM. Text in Illustration
|
|
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
A49-13 (CANH) - A49-5 (CANL) |
Ignition switch off |
108 to 132 Ω |
(c) for 2GR-FE engine:
(1) Disconnect the connector of the ECM. Text in Illustration
|
|
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
A41-10 (CANH) - A41-11 (CANL) |
Ignition switch off |
108 to 132 Ω |
NG | ![]() |
REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (ECM MAIN WIRE) |
|
2. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL) |
(a) Check for ECM Power Source Circuit (1AR-FE: See page
, 2GR-FE: See page
).
Result |
Proceed to |
---|---|
OK (for 1AR-FE engine) |
A |
OK (for 2GR-FE engine) |
B |
NG |
C |
A | ![]() |
REPLACE ECM |
B | ![]() |
REPLACE ECM |
C | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
Inspection
INSPECTION
PROCEDURE
1. INSPECT DRIVE MONITOR SWITCH
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Switch Condition
Specif ...
Registered Device cannot be Deleted
PROCEDURE
1.
DELETE OPERATION
(a) Check if a registered portable player can be deleted normally.
OK:
Registered portable player can be deleted normally.
OK
END
NG
PROCEED TO ...
IG2 Signal Malfunction (B2788)
DESCRIPTION
The steering lock ECU (steering lock actuator assembly) receives power from the
IG2 relay. When the voltage value indicated by the IG signal from the certification
ECU (smart key ECU assembly) equals to the voltage that is applied to the steer ...