Kia Sedona (2008 year). Instruction — part 175
Fig. 138: Measuring Waveform Between Terminal 28 Of IMS And Chassis Ground
Courtesy of KIA MOTORS AMERICA, INC.
Fig. 139: Identifying Waveform
Courtesy of KIA MOTORS AMERICA, INC.
4. Is the measured voltage within specifications in Fig. 139?
YES
Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration,
or damage.
Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR"
procedure.
NO
Substitute with a known-good power seat slide sensor and check for proper operation. If the
problem is corrected, replace power seat slide sensor and then go to "VERIFICATION OF
VEHICLE REPAIR" procedure.
VERIFICATION OF VEHICLE REPAIR
2008 Kia Sedona EX
2008 ACCESSORIES & BODY, CAB BCM (Body Control Module) - Sedona
Microsoft
Monday, May 24, 2010 4:19:18 PM
Page 169
© 2006 Mitchell Repair Information Company, LLC.
Refer to DTC B1954.
DTC B1957 REAR HEIGHT MOTOR OR SENSOR ERROR
COMPONENT LOCATION
Refer to DTC B1954.
GENERAL DESCRIPTION
Refer to DTC B1954.
DTC DESCRIPTION
The ECM sets DTC B1956 if there's any fault in front height sensor signal.
DTC DETECTING CONDITION
DTC DETECTING CONDITION
MONITOR DTC STATUS
1. Connect scan tool to Data Link Connector (DLC).
2. Ignition "ON" & engine "OFF".
3. Select "Diagnostic Trouble Codes (DTCs) "mode and monitor "DTC Status" parameter.
4. Is the DTC B1957 present?
YES
Go to TERMINAL AND CONNECTOR INSPECTION procedure.
NO
Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and
ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending,
corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to
"VERIFICATION OF VEHICLE REPAIR" procedure.
Item
Detecting Condition
Possible Cause
DTC Strategy
Check no. of pulse
Open or short in signal
harness
Open or short in power
harness
Faulty rear height motor
Faulty rear height sensor
Enable Conditions
IGN `ON' & Engine `OFF' & rear
height s/w `ON'
Threshold value
6 pulses in 1 sec
Detecting time
1 sec
FAIL SAFE
-
2008 Kia Sedona EX
2008 ACCESSORIES & BODY, CAB BCM (Body Control Module) - Sedona
Microsoft
Monday, May 24, 2010 4:19:18 PM
Page 170
© 2006 Mitchell Repair Information Company, LLC.
TERMINAL AND CONNECTOR INSPECTION
Refer to DTC B1954.
SIGNAL CIRCUIT INSPECTION
1. Check for open in harness
1. Ignition "OFF".
2. Measure resistance between terminal "10" of IMS and terminal "3" of power seat recline sensor.
Specification :Approx. 0 ohms
Fig. 140: Measuring Resistance Between Terminal 10 Of IMS And Terminal 3 Of Power Seat
Recline Sensor
Courtesy of KIA MOTORS AMERICA, INC.
3. Is the measured resistance within specifications?
YES
Go to step 2.
NO
Check for open in signal harness. Repair as necessary and go to "VERIFICATION OF
VEHICLE REPAIR" procedure.
2. Check for short in harness
1. Ignition "OFF".
2. Disconnect rear height motor.
3. Measure resistance between terminal "10" of IMS and chassis ground.
Specification :Approx. infinity ohms
2008 Kia Sedona EX
2008 ACCESSORIES & BODY, CAB BCM (Body Control Module) - Sedona
Microsoft
Monday, May 24, 2010 4:19:18 PM
Page 171
© 2006 Mitchell Repair Information Company, LLC.
Fig. 141: Measuring Resistance Between Terminal 10 Of IMS And Chassis Ground
Courtesy of KIA MOTORS AMERICA, INC.
4. Is the measured resistance within specifications?
YES
Go to "POWER CIRCUIT INSPECTION" procedure.
NO
Check for short in signal harness. Repair as necessary and go to "VERIFICATION OF
VEHICLE REPAIR" procedure.
POWER SUPPLY CIRCUIT INSPECTION
MOTOR POWER CIRCUIT INSPECTION
1. Check for open in harness
1. Ignition "OFF"
2. Disconnect rear height motor.
3. Measure resistance between terminal "3" of IMS and terminal "2" of power seat recline motor.
4. Measure resistance between terminal "8" of IMS and terminal "5" of power seat recline motor.
Specification :Approx. 0 ohms
2008 Kia Sedona EX
2008 ACCESSORIES & BODY, CAB BCM (Body Control Module) - Sedona
Microsoft
Monday, May 24, 2010 4:19:18 PM
Page 172
© 2006 Mitchell Repair Information Company, LLC.
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