Kia Sedona (2008 year). Instruction — part 63
Check the STPS.
NO
Repair or replace the wiring harness between the STPS and the SRSCM.
3. CHECK THE SEAT TRACK POSITION SENSOR (STPS)
1. Measure current between the terminal 1 of STPS and 30 of SRSCM.
Specification (current): 12-17 mA (Rearward status), 5-7 mA (Forward status)
2. Is the measured current within specification?
YES
Go to next stop.
NO
Replace the STPS.
4. CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
Refer to CLEAR THE DTC AND CHECK THE VEHICLE AGAIN.
DTC B1388 SEAT TRACK POSITION SENSOR [DRIVER] OPEN OR SHORT TO BATTERY
DTC DESCRIPTION
The Seat Track Position Sensor (STPS) circuit consists of the SRSCM and STPS. The SRSCM sets above DTC
(s) if it detects open or short to battery line on the STPS circuit. The "Seat Forward" status currently represents a
seat position in which the deployment of the second stage airbag is prohibited.
DTC DETECTING CONDITION
DTC DETECTING CONDITION
SCHEMATIC DIAGRAM
DTC
Condition
Probable cause
B1388
Open between STPS and SRSCM
Short to battery line between STPS and
SRSCM
STPS Malfunction
SRSCM Malfunction
Open or short to battery line circuit on
wiring harness
STPS
SRSCM
2008 Kia Sedona EX
2008 RESTRAINTS Troubleshooting (Airbag) - Sedona
Microsoft
Monday, May 24, 2010 3:55:01 PM
Page 55
© 2006 Mitchell Repair Information Company, LLC.
Fig. 50: Seat Track Position Sensor - Schematic Diagram
SPECIFICATION
SEAT TRACK POSITION SENSOR CURRENT SPECIFICATION
TERMINAL & CONNECTOR INSPECTION
Refer to TERMINAL & CONNECTOR INSPECTION.
INSPECTION PROCEDURE
1. PREPARATION
Refer to PREPARATION OF INSPECTION.
2. CHECK OPEN CIRCUIT
1. Disconnect the STPS connector.
2. Measure resistance between the terminal 1 of STPS harness connector and the terminal 30 of
SRSCM harness connector (B).
specification (resistance): below 1 ohms
STPS Status
Current (mA)
Related DTC
Open or Short to Battery
< 3.98
B1388
Forward
5-7
Defect
8.62-9.94
B1389
Rearward
12-17
Short or Short to Ground
> 20.83
B1387
2008 Kia Sedona EX
2008 RESTRAINTS Troubleshooting (Airbag) - Sedona
Microsoft
Monday, May 24, 2010 3:55:01 PM
Page 56
© 2006 Mitchell Repair Information Company, LLC.
Fig. 51: Checking Open Circuit
3. Is the measured resistance within specification?
YES
Check short to ground.
NO
Repair the open circuit on wiring harness between the STPS and the SRSCM.
3. CHECK SHORT TO BATTERY LINE
1. Connect the battery negative cable to the battery.
2. Turn the ignition switch to ON.
3. Measure voltage between the terminal 1 of STPS harness connector and chassis ground.
specification (voltage): Approximately 0 V
Fig. 52: Checking Short To Battery Line
4. Is the measured voltage within specification?
YES
2008 Kia Sedona EX
2008 RESTRAINTS Troubleshooting (Airbag) - Sedona
Microsoft
Monday, May 24, 2010 3:55:01 PM
Page 57
© 2006 Mitchell Repair Information Company, LLC.
CHECK THE SEAT TRACK POSITION SENSOR (STPS).
NO
Repair the short to battery line circuit on wiring harness between the STPS and the SRSCM.
4. CHECK THE SEAT TRACK POSITION SENSOR (STPS)
1. Measure current between the terminal 1 of STPS and 30 of SRSCM.
Specification (current): 12-17 mA (Rearward status), 5-7 mA (Forward status)
2. Is the measured current within specification?
YES
Go to next stop.
NO
Replace the STPS.
5. CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
Refer to CLEAR THE DTC AND CHECK THE VEHICLE AGAIN.
DTC B1389 SEAT TRACK POSITION SENSOR [DRIVER] DEFECT
DTC DESCRIPTION
The Seat Track Position Sensor (STPS) circuit consists of the SRSCM and STPS. The SRSCM sets above DTC
(s) if it detects the STPS fault. The "Seat Forward" status currently represents a seat position in which the
deployment of the second stage airbag is prohibited.
DTC DETECTING CONDITION
DTC DETECTING CONDITION
SCHEMATIC DIAGRAM
DTC
Condition
Probable cause
B1389
STPS Malfunction
SRSCM Malfunction
STPS
SRSCM
2008 Kia Sedona EX
2008 RESTRAINTS Troubleshooting (Airbag) - Sedona
Microsoft
Monday, May 24, 2010 3:55:01 PM
Page 58
© 2006 Mitchell Repair Information Company, LLC.
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