3. MAP sensor signal circuit (PB) short-circuit inspection
-1. Turn the ignition switch OFF.
-2. Disconnect the ECM connector A.
-3. Check for continuity between the No. 1 (White/Red)
terminal of the wire harness side 3P connector and
the body ground.
◆
Is there continuity?
YES - Repair short circuit between MAP sensor and
ECM.
NO -
Recheck with a new ECM.
4. MAP sensor inspection
-1. Turn the ignition switch OFF and connect the MAP
sensor 3P connector and ECM connector A.
-2. Turn the ignition switch ON. Check the MAP sensor
voltage with the HDS (Dr. H or Pocket Tester).
◆
Is there 2.76 ~ 2.96 V *?
YES - Recheck with a new ECM.
NO -
Replace the MAP sensor.
*: Indicates the voltage under the condition of 969 -
1,042 hPa.
DTC 3-2: High MAP sensor 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 MAP sensor voltage with the HDS (Dr. H
or Pocket Tester).
◆
Is there 0.215 ~ 3.144 V?
YES - Temporary failure (Disappears).
NO -
Go to the step 2.
2. MAP sensor signal circuit (PB) inspection
-1. Turn the ignition switch OFF and disconnect the
MAP sensor 3P connector.
-2. Turn the ignition switch ON.
-3. Measure the voltage between the No. 1 (White/Red
+) terminal and No. 2 (Green -) terminal of the MAP
sensor wire harness side 3P connector.
◆
Is there 4.30 ~ 5.25 V?
YES - Go to the step 5.
NO -
Go to the step 3.
5-6
BF115A•BF130A
PB (WHITE/RED)
View from the terminal side
MAP SENSOR 3P CONNECTOR
(Wire harness side)
View from the terminal side
MAP SENSOR 3P CONNECTOR
(Wire harness side)
PB
(WHITE/RED +)
SG (GREEN -)
