Hyundai Santa Fe (2006 year). Manual — part 244
BR -148
BRAKE SYSTEM
CAN BUS SHORT (TO GROUND) INSPECTION
1.
Ignition "OFF".
2.
Disconnet the HECU harness connector.
3.
Measure resistance between terminal "3, 4" of the HECU harness connector and chassis ground.
Specification : Approx.
∞ Ω
Ω Ω
1
2
3
4
1. Steering Angle Sensor Ground
2. Steering Angle Sensor Supply
3. CAN Line (HIGH)
4. CAN Line (LOW)
<M38>
SCMBR6566L
4.
Is the measured resistance within specifications?
YES
▶
Go to "CAN Bus Short (between HIGH and LOW) Inspection" procedure.
NO
▶
Check for short to ground in CAN HIGH signal harness in case of abnormal resistance measured betweenterminal
"3" of the HECU harness connector and chassis ground. Repair as necessary and then go to "Verification Of Vehicle
Repair" procedure.
▶
Check for short to ground in CAN LOW signal harness in case of abnormal resistance measured betweenterminal
"4" of the HECU harness connector and chassis ground. Repair as necessary and then go to "Verification Of Vehicle
Repair" procedure.
ABS (ANTI-LOCK BRAKE SYSTEM)
BR -149
CAN BUS SHORT (BETWEEN HIGH AND LOW) INSPECTION
1.
Ignition "OFF".
2.
Disconnet all the connetor related to CAN such as HECU, PCU, EPS, ECS harness connector.
3.
Measure resistance between terminal "3, 4" of the HECU harness.
Specification : Approx. 120
Ω
Ω
1
2
3
4
1. Steering Angle Sensor Ground
2. Steering Angle Sensor Supply
3. CAN Line (HIGH)
4. CAN Line (LOW)
<M38>
SCMBR6567L
4.
Is the measured resistance within specifications?
YES
▶
Go to "Component Inspection" procedure.
NO
▶
Check for short in CAN signal harness between terminal "3" of the HECU harness connector and terminal "4" of
the HECU harness connector. Repair as necessary and then go to "Verification Of Vehicle Repair" procedure.
BR -150
BRAKE SYSTEM
COMPONENT INSPECTION
E0354D6C
1.
Ignition "OFF".
2.
Ignition "ON".
3.
Connect scantool and select "Diagnostic Trouble Codes (DTCs)" mode.
4.
Using a scantool, Clear DTC.
5.
Select "Diagnostic Trouble Codes (DTCs)" mode again.
6.
Are any DTCs present ?
YES
1)
Substitute with a known-good steering angle sensor and check for proper operation. If problem is corrected,
replace sensor and then go to "Verification Of Vehicle Repair" procedure.
2)
Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and
then go to "Verification Of Vehicle Repair" procedure.
NO
▶
Fault is intermittent caused by poor connection in steering angle sensor harness or faulty steering angle sensor.
Go to "Verification Of Vehicle Repair" procedure.
VERIFICATION OF VEHICLE REPAIR
EDDB39C4
Refer to DTC C1101.
ABS (ANTI-LOCK BRAKE SYSTEM)
BR -151
DTC C1625 CAN TIME-OUT ABS/TCS/ESP
COMPONENT LOCATION
EE4D6C4A
Refer to DTC C1235.
GENERAL DESCRIPTION
EA8B81C6
Refer to DTC C1605.
DTC DESCRIPTION
E1AACA13
The HECU checks the CAN communcation lines for normal ESP control, and sets this code if a CAN message is not
transmitted within predefined time.
DTC DETECTING CONDITION
ECA90A70
Item
Detecting Condition
Possible cause
DTC Strategy
• CAN massage monitoring
Monitoring
Period
• Continuous
Enable
Conditions
• Faults are detected if CAN message was not transmitted
on time by the CAN controller of HECU.
Fail Safe
• Inhibit the ESP control and ABS/EBD control is available.
Meanwhile, stop checking the ESP switch failure
under the ESP control.
• Inoperative HECU
TERMINAL
&
CONNECTOR INSPECTION
EB2312B0
Refer to DTC C1260.
COMPONENT INSPECTION
ECF6F03E
Refer to DTC C1235.
VERIFICATION OF VEHICLE REPAIR
E90D8919
Refer to DTC C1101.
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