Code No. B107A:
Ion Generator System Failure <Vehicles with nanoe™>
|
|
When the heater controller assembly (A/C-ECU) detects the following conditions for 6 seconds,
diagnosis code No. B107A is set.
|
|
|
- Engine is running
- Battery voltage: 10 to 16 V
- Ion generator operation request signal: ON
- Ion generator operation signal: Not received
|
|
|
- Malfunction of the ion generator
- Malfunction of the heater controller assembly (A/C-ECU)
- Damaged the wiring harness or connectors
|
|
|
STEP 1. Voltage measurement at ion generator connector (STLT
terminal)
|
|
|
(1)Disconnect the connector, and measure at the wiring harness side.
|
|
|
(2)Turn the ignition switch to the "ON" position.
|
|
|
(3)Turn on the air refresher ionizer switch and make sure that the indicator on the
switch illuminates.
|
|
|
(4)Set the blower speed to other than OFF.
|
|
|
(5)Check the voltage between the ion generator connector (STLT terminal) and body
earth.
OK: 10 V to 16 V
|
|
|
Q.
Is the check result normal?
|
|
|
 Go to Step 3.
|
|
|
|
|
|
 Go to Step 2.
|
|
|
|
|
|
STEP 2. Check of open and short circuit in I/G line between heater
controller assembly (A/C-ECU) connector and ion generator connector
|
|
|
Q.
Is the check result normal?
|
|
|
Replace the heater controller assembly (A/C-ECU).
|
|
|
|
|
|
Repair the connector(s) or wiring harness.
|
|
|
|
|
|
STEP 3. Voltage measurement at heater controller assembly (A/C-ECU)
connector (I/GM terminal)
|
|
|
(1)Measure by backprobing without disconnecting the connector.
|
|
|
(2)Turn the ignition switch to the "ON" position.
|
|
|
(3)Turn on the air refresher ionizer switch and make sure that the indicator on the
switch illuminates.
|
|
|
(4)Set the blower speed to other than OFF.
|
|
|
(5)Check the voltage between the heater controller assembly (A/C-ECU) (I/GM terminal)
and body earth.
OK: 10 V to 16 V
|
|
|
Q.
Is the check result normal?
|
|
|
Go to Step 8.
|
|
|
|
|
|
Go to Step 4.
|
|
|
|
|
|
STEP 4. Check of open and short circuit in I/GM line between heater
controller assembly (A/C-ECU) connector and ion generator connector
|
|
|
Q.
Is the check result normal?
|
|
|
Go to Step 5.
|
|
|
|
|
|
Repair the connector(s) or wiring harness.
|
|
|
|
|
|
STEP 5. Check of open and short circuit in IG line between ignition
switch (IG1) or IG1 relay, and ion generator connector
|
|
|
Q.
Is the check result normal?
|
|
|
Go to Step 6.
|
|
|
|
|
|
Repair the connector(s) or wiring harness.
|
|
|
|
|
|
STEP 6. Check of open circuit in GND line between ion generator connector
and body earth
|
|
|
Q.
Is the check result normal?
|
|
|
Go to Step 7.
|
|
|
|
|
|
Repair the connector(s) or wiring harness.
|
|
|
|
|
|
STEP 7. Check whether the diagnosis code is set again.
|
|
|
Q.
Is the diagnosis code set?
|
|
|
Replace the ion generator (Refer to  ).
|
|
|
|
|
|
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How
to Cope with Intermittent Malfunction).
|
|
|
|
|
|
STEP 8. Check whether the diagnosis code is set again.
|
|
|
Q.
Is the diagnosis code set?
|
|
|
Replace the heater controller assembly (A/C-ECU).
|
|
|
|
|
|
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How
to Cope with Intermittent Malfunction).
|
|
|
|