MWI
OIL PRESSURE SWITCH SIGNAL CIRCUIT
MWI-31
< COMPONENT DIAGNOSIS >
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OIL PRESSURE SWITCH SIGNAL CIRCUIT
DescriptionINFOID:0000000001374697
Detects the engine oil pressure and transmits the oil pressure switch signal to the IPDM E/R.
Component Function CheckINFOID:0000000001374698
1.COMBINATION METER INPUT SIGNAL
1. Select “METER/M&A” on CONSULT-III.
2. Monitor “OIL W/L” of “DATA MONITOR” while operating ignition switch.
>> Inspection End.
Diagnosis ProcedureINFOID:0000000001374699
1.CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector E46 and oil pressure switch
connector F32.
3. Check continuity between IPDM E/R harness connector E46 (A)
terminal 37 and oil pressure switch harness connector F32 (B)
terminal 1.
Is the inspection result normal?
YES >> Inspection End.
NO >> Repair harness or connector.
Component InspectionINFOID:0000000001374700
1.CHECK OIL PRESSURE SWITCH
Check continuity between oil pressure switch and ground.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace the oil pressure switch.OIL W/L
When ignition switch is in ON
position (Engine stopped): ON
When engine is running : OFF
Continuity should exist.
WKIA5459E
Condition
Oil pressure [kPa (kg/cm2, psi)]Continuity
Engine stopped Less than 29 (0.3, 4) Yes
Engine running More than 29 (0.3, 4) No
ELF0044D
MWI
BCM (BODY CONTROL MODULE)
MWI-57
< ECU DIAGNOSIS >
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1: With Intelligent Key
2: With remote keyless entry system
3: HatchbackKEYLESS LOCK
2LOCK button of key fob is not pressed OFF
LOCK button of key fob is pressed ON
KEYLESS UNLOCK
2UNLOCK button of key fob is not pressed OFF
UNLOCK button of key fob is pressed ON
LIT-SEN FAILLight & rain sensor is in normal condition OK
Light & rain sensor is with internal error NOTOK
OIL PRESS SW Ignition switch OFF or ACC
Engine runningOFF
Ignition switch ON ON
OUT SIDE TEMP
NOTE:
Diesel engine modelsIgnition switch ONApproximately the same as outside
air temperature
PASSING SWOther than lighting switch PASS OFF
Lighting switch PASS ON
PUSH SW
1Return to ignition switch to LOCK position OFF
Press ignition switch ON
REAR DEF SWRear window defogger switch OFF OFF
Rear window defogger switch ON ON
RKE LOCK AND
UNLOCK
2NOTE:
The item is indicated, but not monitoredOFF
ON
RR FOG SWRear fog lamp switch OFF OFF
Rear fog lamp switch ON ON
RR WASHER SW
3Rear washer switch OFF OFF
Rear washer switch ON ON
RR WIPER INT
3Rear wiper switch OFF OFF
Rear wiper switch INT ON
RR WIPER ON
3 Rear wiper switch OFF OFF
Rear wiper switch ON ON
RR WIPER STOP
3Rear wiper stop position OFF
Other than rear wiper stop position ON
TAIL LAMP SWLighting switch OFF OFF
Lighting switch 1ST ON
TRNK OPNR SWWhen back door opener switch is not pressed OFF
When back door opener switch is pressed ON
TURN SIGNAL LTurn signal switch OFF OFF
Turn signal switch LH ON
TURN SIGNAL RTurn signal switch OFF OFF
Turn signal switch RH ON
UNLOCK WITH DRNOTE:
The item is indicated, but not monitoredOFF
ON
VEHICLE SPEED While driving Equivalent to speedometer reading Monitor Item Condition Value/Status
MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MWI-75
< ECU DIAGNOSIS >
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
Reference ValueINFOID:0000000001713125
VALUES ON THE DIAGNOSIS TOOL
Monitor Item Condition Value/Status
MOTOR FAN REQ Engine idle speedChanges depending on engine
coolant temperature, air conditioner
operation status, vehicle speed,
etc.0 - 100 %
A/C COMP REQA/C switch OFF OFF
A/C switch ON ON
TA I L & C L R R E QLighting switch OFF OFF
Lighting switch 1ST, 2ND, HI or AUTO (Light is illuminated) ON
HL LO REQLighting switch OFF OFF
Lighting switch 2ND HI or AUTO (Light is illuminated) ON
HL HI REQLighting switch OFF OFF
Lighting switch HI ON
FR FOG REQLighting switch 2ND or AUTO (Light
is illuminated)Front fog lamp switch OFF OFF
Front fog lamp switch ON
Daytime light activated ON
HL WASHER REQNOTE:
This item is displayed, but cannot be monitored.OFF
FR WIP REQ Ignition switch ONFront wiper switch OFF STOP
Front wiper switch INT 1LOW
Front wiper switch LO LOW
Front wiper switch HI HI
WIP AUTO STOP Ignition switch ONFront wiper stop position STOP P
Any position other than front wiper
stop positionACT P
WIP PROT Ignition switch ONFront wiper operates normally OFF
Front wiper stops at fail-safe opera-
tionBLOCK
ST RLY REQIgnition switch OFF or ACC OFF
Ignition switch START ON
IGN RLYIgnition switch OFF or ACC OFF
Ignition switch ON ON
RR DEF REQRear defogger switch OFF OFF
Rear defogger switch ON ON
OIL P SWIgnition switch OFF, ACC or engine running OPEN
Ignition switch ON CLOSE
DTRL REQNOTE:
This item is displayed, but cannot be monitored.OFF
HOOD SWNOTE:
This item is displayed, but cannot be monitored.OFF
MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MWI-79
< ECU DIAGNOSIS >
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29 PTail lamp relay (park-
ing lamps)Output — Lighting switch in 2nd position Battery voltage
30 R Fuse 54 Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
31 O Fuse 55 Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
32 LWiper high speed sig-
nalOutputON or
STARTWiper switchOFF, LO, INT 0V
HI Battery voltage
33 YWiper low speed sig-
nalOutputON or
STARTWiper switchOFF 0V
LO or INT Battery voltage
35 BRStarter relay (inhibit
switch)InputON or
STARTSelector lever in "P" or "N"
(CVT or A/T) or clutch pedal
depressed (M/T)Battery voltage
Selector lever any other posi-
tion (CVT or A/T) or clutch
pedal released (M/T)0V
36 BR Fuel pump relay Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
37 G Oil pressure switch InputON or
STARTEngine running and oil pres-
sure within specificationBattery voltage
Engine not running or oil pres-
sure below specification0V
38 R Wiper auto stop signal InputON or
STARTWipers not in park position Battery voltage
Wipers in park position 0V
39 B Ground Input — — 0V
40 P CAN-L — ON — —
41 L CAN-H — ON — —
46 YThrottle control motor
relay controlInput —Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
47 GRFuel pump relay con-
trolInput —Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
50 V Front fog lamp (LH)Output ON or
STARTLighting
switch must
be in the 2ND
position
(LOW beam
is ON) and
the front fog
lamp switchOFF 0V
ON Battery voltage
51 W Front fog lamp (RH) OutputON or
STARTLighting
switch must
be in the 2ND
position
(LOW beam
is ON) and
the front fog
lamp switchOFF 0V
ON Battery voltage
52 LLH Low beam head-
lampOutput — Lighting switch in 2nd position Battery voltage Te r m i n a lWire
colorSignal name
Signal
input/
outputMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition
MWI
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
MWI-85
< ECU DIAGNOSIS >
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IGNITION RELAY MALFUNCTION DETECTION FUNCTION
IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it.
IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the excitation
coil circuit.
If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay for 10 minutes to
alert the user to the ignition relay malfunction when the ignition switch is turned OFF.
NOTE:
The tail lamp turns OFF when the ignition switch is turned ON.
FRONT WIPER CONTROL
IPDM E/R detects front wiper stop position by a front wiper auto stop signal.
When a front wiper auto stop signal is in the conditions listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 second activation and 20 second stop five times.
NOTE:
This operation status can be confirmed on the IPDM E/R “DATA MONITOR” that displays “Block” for the item
“WIP PROT” while the wiper is stopped.
STARTER MOTOR PROTECTION FUNCTION
IPDM E/R turns OFF the starter control relay to protect the starter motor when the starter control relay remains
active for 90 seconds.
Control part Fail-safe in operation
Cooling fan Turns ON the cooling fan relay when the ignition switch is turned ON
Turns OFF the cooling fan relay when the ignition switch is turned OFF
Control part Fail-safe in operation
Headlamp Turns ON the headlamp low relay when the ignition switch is turned ON
Turns OFF the headlamp low relay when the ignition switch is turned OFF
Headlamp high relay OFF
Parking lamps
License plate lamps
Tail lamps Turns ON the tail lamp relay when the ignition switch is turned ON
Turns OFF the tail lamp relay when the ignition switch is turned OFF
Front wiper The status just before activation of fail-safe control is maintained until the ignition
switch is turned OFF while the front wiper is operating at LO or HI speed.
The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-
safe control is activated while the front wiper is set in the INT mode and the front wiper
motor is operating.
Rear window defogger Rear window defogger relay OFF
A/C compressor A/C relay OFF
Front fog lamps Front fog lamp relay OFF
Ignition switch Ignition relay Tail lamp relay
ON ON —
OFF OFF —
Ignition switch Front wiper switch Auto stop signal
ONOFFFront wiper stop position signal cannot be
input 10 seconds.
ON The signal does not change for 10 seconds.
MWI-90
< SYMPTOM DIAGNOSIS >
THE OIL PRESSURE WARNING LAMP DOES NOT TURN OFF
THE OIL PRESSURE WARNING LAMP DOES NOT TURN OFF
DescriptionINFOID:0000000001538679
The oil pressure warning lamp remains illuminated while the engine is running (normal oil pressure).
Diagnosis ProcedureINFOID:0000000001538680
1.CHECK OIL PRESSURE WARNING LAMP
Perform auto active test. Refer to PCS-10, "
Diagnosis Description".
Is oil pressure warning lamp illuminated?
YES >> GO TO 2
NO >> Replace combination meter. Refer to MWI-94, "
Removal and Installation".
2.CHECK IPDM E/R OUTPUT VOLTAGE
1. Turn ignition switch OFF.
2. Disconnect the oil pressure switch connector.
3. Turn ignition switch ON.
4. Check voltage between the oil pressure switch harness connec-
tor F32 terminal 1 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> GO TO 4
3.CHECK OIL PRESSURE SWITCH
Perform a unit check for the oil pressure switch. Refer to MWI-31, "
Component Inspection".
Is the inspection result normal?
YES >> Replace IPDM E/R. Refer to PCS-30, "Removal and Installation of IPDM E/R".
NO >> Replace oil pressure switch.
4.CHECK OIL PRESSURE SWITCH SIGNAL CIRCUIT
check the oil pressure switch signal circuit. Refer to MWI-31, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> Replace IPDM E/R. Refer to PCS-30, "Removal and Installation of IPDM E/R".
NO >> Repair harness or connector.1 – Ground : Approx. 12V
PKIC1144E
PCS-10
< FUNCTION DIAGNOSIS >[IPDM E/R]
DIAGNOSIS SYSTEM (IPDM E/R)
DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis DescriptionINFOID:0000000001697589
AUTO ACTIVE TEST
Description
In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation.
Oil pressure low/coolant pressure high warning indicator
Oil pressure gauge
Rear window defogger
Front wipers
Tail, license and parking lamps
Front fog lamps
Headlamps (Hi, Lo)
A/C compressor (magnetic clutch)
Cooling fan
Operation Procedure
1. Close the hood and front door RH, and lift the wiper arms from the windshield (to prevent windshield dam-
age due to wiper operation).
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield before hand.
2. Turn ignition switch OFF.
3. Turn the ignition switch ON and, within 20 seconds, press the front door switch LH 10 times. Then turn the
ignition switch OFF.
4. Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test
starts.
5. After a series of the following operations is repeated 3 times, auto active test is completed.
NOTE:
When auto active test mode has to be cancelled halfway through test, turn ignition switch OFF.
CAUTION:
• If auto active test mode cannot be actuated, check door switch system. Refer to DLK-65, "
DRIVER
SIDE : Description" (with Intelligent Key system), DLK-499, "DRIVER SIDE : Description" (without
Intelligent Key system).
Do not start the engine.
Inspection in Auto Active Test Mode
PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-17
< ECU DIAGNOSIS >[IPDM E/R]
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ECU DIAGNOSIS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
Reference ValueINFOID:0000000001697595
VALUES ON THE DIAGNOSIS TOOL
Monitor Item Condition Value/Status
MOTOR FAN REQ Engine idle speedChanges depending on engine
coolant temperature, air conditioner
operation status, vehicle speed,
etc.0 - 100 %
A/C COMP REQA/C switch OFF OFF
A/C switch ON ON
TA I L & C L R R E QLighting switch OFF OFF
Lighting switch 1ST, 2ND, HI or AUTO (Light is illuminated) ON
HL LO REQLighting switch OFF OFF
Lighting switch 2ND HI or AUTO (Light is illuminated) ON
HL HI REQLighting switch OFF OFF
Lighting switch HI ON
FR FOG REQLighting switch 2ND or AUTO (Light
is illuminated)Front fog lamp switch OFF OFF
Front fog lamp switch ON
Daytime light activated ON
HL WASHER REQNOTE:
This item is displayed, but cannot be monitored.OFF
FR WIP REQ Ignition switch ONFront wiper switch OFF STOP
Front wiper switch INT 1LOW
Front wiper switch LO LOW
Front wiper switch HI HI
WIP AUTO STOP Ignition switch ONFront wiper stop position STOP P
Any position other than front wiper
stop positionACT P
WIP PROT Ignition switch ONFront wiper operates normally OFF
Front wiper stops at fail-safe opera-
tionBLOCK
ST RLY REQIgnition switch OFF or ACC OFF
Ignition switch START ON
IGN RLYIgnition switch OFF or ACC OFF
Ignition switch ON ON
RR DEF REQRear defogger switch OFF OFF
Rear defogger switch ON ON
OIL P SWIgnition switch OFF, ACC or engine running OPEN
Ignition switch ON CLOSE
DTRL REQNOTE:
This item is displayed, but cannot be monitored.OFF
HOOD SWNOTE:
This item is displayed, but cannot be monitored.OFF