Hyundai Santa Fe (2006 year). Manual — part 240
BR -132
BRAKE SYSTEM
DTC C1604 ECU HARDWARE ERROR
COMPONENT LOCATION
E7E41667
Refer to DTC C1235.
GENERAL DESCRIPTION
EEFC3248
The HECU is composed of an ECU (Electronic Control Unit ) and a HCU( Hydraulic Control Unit) , HCU is composed
of a source of hydraulic pressure and modulator valve block. Increase and decrease of hydraulic pressure is opreated
by electronic motor, According to a detected signal by wheel speed sensor, The hydraulic pressure which is needed for
control is supplied by pump. The HCU’ function which is composed of a accumulator, return pump, solenoid valve is to
increase, decrease or maintain the hydralic pressure supplied to a brake caliper by operating return pump according to
HECU control signal while ABS control is active.
DTC DESCRIPTION
EDAABDE6
The HECU monitors the operation of the IC components such as memory, register, A/D converter and so on. The ECU
sets this code when the EEPROM data read by the master processor is different than prior data writed, or when the
master/slave processor detects abnormal operation in RAM, Status Register, Interrupt, Timer, A/D converter or cycle
time.
DTC DETECTING CONDITION
E191019E
Item
Detecting Condition
Possible cause
DTC Strategy
• Internal monitoring
Monitoring
Period
• Continuous
Case 1
Enable
Conditions
• If Internal control unit failures of the master/slave
processor or peripheral integrated circuits is detected.
Monitoring
Period
• Directly after ignition on, during reading of
EEPROM-values
Case 2
Enable
Conditions
• Failure is set if checksum not correct or
PSW-EEPROM-Handler reported unknown
failure during EEPROM-value reading.
• If EEPROM reading sequence take longer then
3 s, a failure is set.
Fail Safe
• The ABS/EBD/ESP functions are inhibited.
• The ABS/EBD/ESP warning lamps are activated.
• Inoperative HECU
TERMINAL
&
CONNECTOR INSPECTION
EB2312B6
Refer to DTC C1260.
COMPONENT INSPECTION
E3AF7919
Refer to DTC C1235.
VERIFICATION OF VEHICLE REPAIR
EDA6B173
Refer to DTC C1101.
ABS (ANTI-LOCK BRAKE SYSTEM)
BR -133
DTC C1605 CAN HARDWARE ERROR
COMPONENT LOCATION
E42E151F
Refer to DTC C1235.
GENERAL DESCRIPTION
EFD3DC76
The HECU send requirement data, such as Torque reduction, the number of fuel cut cylinders, and TCS control requests,
to the PCM(ECM
&
TCM) through CAN bus line. The PCM(ECM) performs fuel cut functions according to requests from
the HECU and retards ignition timing by torque reduction requests. The PCM(TCM) maintains current gear positions
during TCS control time, in order not to increase power which causes a Kickdown shift.
DTC DESCRIPTION
E54ED072
The HECU checks the CAN control module for normal TCS control, and sets this code if CAN control module malfunction
is detected.
DTC DETECTING CONDITION
ECBE70FD
Item
Detecting Condition
Possible cause
DTC Strategy
• CAN control module monitoring
Monitoring
Period
• Immediate during start up
Enable
Conditions
• Faults are detected immediately if the initialization
software can’t have write access to the configuration
registers of the CAN-controller module.
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
EB2312B7
Refer to DTC C1260.
COMPONENT INSPECTION
EE960EE5
Refer to DTC C1235.
VERIFICATION OF VEHICLE REPAIR
E77708CC
Refer to DTC C1101.
BR -134
BRAKE SYSTEM
DTC C1611 CAN TIME-OUT EMS
COMPONENT LOCATION
EDCCC649
Refer to DTC C1235.
GENERAL DESCRIPTION
E3850C33
Refer to DTC C1605.
DTC DESCRIPTION
ECFFF519
The HECU checks the CAN communcation lines for normal ESP control, and sets this code if a PCM(ECM) message is
not received within predefined time.
DTC DETECTING CONDITION
EA602299
Item
Detecting Condition
Possible cause
DTC Strategy
• CAN massage monitoring
Monitoring
Period
• Continuous
Enable
Conditions
• Faults are detected if PCM(ECM) message was not
received 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 PCM(ECM)
• Inoperative HECU
TERMINAL
&
CONNECTOR INSPECTION
EB2312B8
Refer to DTC C1260.
ABS (ANTI-LOCK BRAKE SYSTEM)
BR -135
COMPONENT INSPECTION
E511BB15
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
▶
Substitute with a known-good PCM(ECM) and check for proper operation. If problem is corrected, replace
PCM(ECM) and then go to "Verification Of Vehicle Repair" procedure.If NG, replace HECU and then go to
"Verification Of Vehicle Repair" procedure.
NO
▶
Fault is intermittent caused by faulty HECU or was repaired and HECU memory was not cleared. go to "Verification
Of Vehicle Repair" procedure.
VERIFICATION OF VEHICLE REPAIR
E5A708F3
Refer to DTC C1101.
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