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) |
Removal
REMOVAL
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-)
battery terminal to disable the SRS system.
NOTICE:
When disconnecting the cable, some systems ne ...
Removal
REMOVAL
PROCEDURE
1. PRECAUTION
CAUTION:
Be sure to read Precaution thoroughly before servicing (See page
).
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-)
bat ...
Evaporative Emission Control System Pressure Sensor Range / Performance (P0451-P0453)
DTC SUMMARY
DTC No.
Monitoring Item
Malfunction Detection Condition
Trouble Area
Detection Timing
Detection Logic
P0451
Canister pressure sensor abnormal voltage flu ...