DTC 6-2: High ECT sensor 1 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. Check the ECT sensor 1 voltage with the HDS (Dr.
H or Pocket Tester).
◆
Is there 0.078 ~ 4.922 V?
YES - Temporary failure (Disappears).
NO -
Go to the step 2.
2. ECT sensor 1 circuit inspection
-1. Turn the ignition switch OFF and disconnect the
ECT sensor 1 2P connector.
-2. Turn the ignition switch ON.
-3. Measure the voltage between the No. 2 (Red/White
+) and the No. 1 (Green -) terminals of the ECT sen-
sor 1 wire harness side 2P connector.
◆
Is there 4.30 ~ 5.25 V?
YES - Go to the step 5.
NO -
Go to the step 3.
3. ECT sensor 1 signal (TE) circuit open-circuit
inspection
-1. Turn the ignition switch OFF and disconnect the
ECM connector A.
-2. Check for continuity between the No. 2 (Red/White)
terminal of the ECT sensor 1 wire harness side 2P
connector and No. 32 (Red/White) terminal of the
ECM connector A.
◆
Is there continuity?
YES - Go to the step 4.
NO -
Repair open circuit between the ECM and
ECT sensor 1.
4. ECT sensor 1 ground (SG) circuit open-circuit
inspection
-1. Turn the ignition switch OFF.
-2. Check for continuity between the No. 1 (Green) ter-
minal of the ECT sensor 1 wire harness side 2P
connector and the body ground.
◆
Is there continuity?
YES - Go to the step 5.
NO -
Repair open circuit between the ECM and
ECT sensor 1.
5-11
BF115A•BF130A
View from the terminal side
ECT SENSOR 1
2P CONNECTOR
(Wire harness side)
TE (RED/WHITE +)
SG (GREEN -)
View from the terminal side
ECT SENSOR 1
2P CONNECTOR
(Wire harness side)
SG (GREEN )
ECT SENSOR 1
2P CONNECTOR
(Wire harness side)
View from the terminal side
ECM CONNECTOR A
TE
(RED/WHITE)
