3. ECT sensor 2 inspection
-1. Connect the ECM connector A and the ECT sensor
2 connector.
-2. Turn the ignition switch ON and check the engine
temperature with the HDS (Dr. H or Pocket Tester).
◆
Does it agree with actual engine temperature?
YES - Recheck with a new ECM.
NO -
Replace the ECT sensor 2.
DTC 140-2: High ECT sensor 2 voltage
1. Reappearance test
-1. Connect the HDS (Dr. H or Pocket Tester) (page 5-
1) and clear the DTC (page 5-2).
• If the DTC cannot be cleared, continue trou-
bleshooting.
-2. Turn the ignition switch ON.
-3. Measure the ECT sensor 2 voltage with the HDS
(Dr. H or Pocket Tester).
◆
Is there 0.078 ~ 4.922?
YES - Temporary failure (Disappears).
NO -
Go to the step 2.
2. ECT sensor 2 circuit inspection
-1. Turn the ignition switch OFF and disconnect the 2P
connector of the ECT sensor 2.
-2. Turn the ignition switch ON.
-3. Measure the voltage between the No. 2 (Red/
Green) and No. 1 (Green) terminals of the ECT sen-
sor 2 wire harness side 2 P connector.
◆
Is there 4.30 ~ 5.25 V?
YES - Go to the step 5.
NO -
Go to the step 3.
5-21
BF115A•BF130A
TOH (RED/GREEN)
SG (GREEN)
View from the terminal side
ECT SENSOR 2
2P CONNECTOR
(Wire harness side)
