Hyundai Santa Fe (2006 year). Manual — part 239
BR -128
BRAKE SYSTEM
MONITOR SCANTOOL DATA
E70AF2E4
1.
Connect scantool to Data Link Connector(DLC).
2.
Ignition "ON"
&
Engine "ON"
3.
Press the brake pedal.
4.
Monitor the "BRAKE SWITCH" parameter on the scantool.
Specification : Lateral G sensor : ± 0 G, YAW rate Sensor : ± 0 deg/s
Fig 1) Test Condition : Ignition "ON" & Engine "OFF" Normal data (There are difference in displayed Normal data
Fig1
SCMBR6559L
5.
Whenever brake pedal is pushed down, is the brake switch’s scantool data changed ON/OFF?
YES
▶
Fault is intermittent caused by poor connection in Yaw Rate
&
Lateral G sensor harness and/or HECU’s connector
or was repaired and HECU memory was not cleared. Thoroughly check connectors for looseness, poor connection,
bending, corrosion, contamination.
NO
▶
Go to "W/Harness Inspection" procedure.
ABS (ANTI-LOCK BRAKE SYSTEM)
BR -129
TERMINAL
&
CONNECTOR INSPECTION
E65E3A3D
1.
Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused
by interference from other electrical systems, and mechanical or chemical damage.
2.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or
damage.
3.
Has a problem been found?
YES
▶
Repair as necessary and then go to "Verification Of Vehicle Repair" procedure.
NO
▶
Go to "Signal Circuit Inspection (brake pedal isn’t depressed)" procedure.
SIGNAL CIRCUIT INSPECTION (BRAKE PEDAL ISN’T DEPRESSED)
E023A6AB
1.
Ignition "ON" & Engine "OFF".
2.
Don’t press the brake pedal.
3.
Measure voltage between the terminal "30" of the HECU harness connector and chassis ground.
Specification : Brake Light Switch - Approx. 0V
V
<C281>
30. Brake light switch
1
5 6
8 9 10 11 12 13 14 15 16
18
20 21
26 27 28 29 30 31 32 33
35
37 38
2
3
4
*
*
*
* * * *
* * *
* *
*
*
*
*
*
SCMBR6589L
4.
Is the measured voltage within specifications?
YES
▶
Go to "Signal Circuit Inspection (brake pedal is depressed)" procedure.
NO
▶
Check for open or blown 20A STOP, 7.5A SNSR fuse referring to "Circuit Diagram". Check for open or short to
battery between the battery terminal(+) and the terminal "30" of the HECU harness connector. Repair as necessary
and then go to "Verification Of Vehicle Repair" procedure.
▶
If OK, Go to "Component Inspection" Precedure.
BR -130
BRAKE SYSTEM
SIGNAL CIRCUIT INSPECTION (BRAKE PEDAL IS DEPRESSED)
1.
Ignition "ON" & Engine "OFF".
2.
Press the brake pedal.
3.
Measure voltage between the terminal "30" of the HECU harness connector and chassis ground.
Specification : Brake Light Switch - Approx. B+
V
<C281>
30. Brake light switch
1
5 6
8 9 10 11 12 13 14 15 16
18
20 21
26 27 28 29 30 31 32 33
35
37 38
2
3
4
*
*
*
* * * *
* * *
* *
*
*
*
*
*
SCMBR6590L
4.
Is the measured voltage within specifications?
YES
▶
Fault is intermittent caused by open or short harness in brake light switch, faulty brake light switch or was repaired
and HECU memory was not cleared. Go to "Verification Of Vehicle Repair" procedure.
NO
▶
Check for open or short to ground between the battery terminal(+) and the terminal "30" of the HECU harness
connector. Repair as necessary and then go to "Verification Of Vehicle Repair" procedure.
▶
If OK, Go to "Component Inspection" Precedure.
ABS (ANTI-LOCK BRAKE SYSTEM)
BR -131
COMPONENT INSPECTION
E679EB3B
1.
Ignition "OFF".
2.
Disconnect brake switch connector.
3.
Measure resistance between the terminal "1", "2" of the brake switch.
Resistance between the terminal "1,2" of the brake switch -
∞Ω
(when the plunger is pushed
down), 0
Ω
(when the plunger isn’t pushed down).
1. brake light switch signal
2. brake light switch power supply
<M254>
Ω
1
2
3
4
SCMBR6562L
4.
Is the measured voltage within specifications?
YES
▶
Fault is intermittent caused by open or short harness in brake light switch, faulty brake light switch or was repaired
and HECU memory was not cleared. Go to "Verification Of Vehicle Repair" procedure.
NO
▶
Substitute with a known-good brake lamp switch and check for proper operation. If problem is corrected, replace
brake light switch and then go to "Verification Of Vehicle Repair" procedure.
VERIFICATION OF VEHICLE REPAIR
E4C6A9D0
Refer to DTC C1101.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст