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TROUBLE DIAGNOSIS FOR SYSTEM
TF-71
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3.CHECK TRANSFER SHIFT RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Remove transfer shift high relay and transfer shift low relay. Refer toTF-21, "
Location of Electrical Parts".
3. Check voltage between transfer control unit harness connector
terminal and ground.
4. Turn ignition switch “ON”. (Do not start engine.)
5. Check voltage between transfer control unit harness connector
terminal and ground.
OK or NG
OK >> GO TO 4.
NG >> Check the following. If any items are damaged, repair or
replace damaged parts.
lHarness for short or open between transfer control unit harness connector terminal 27 and
transfer shift high relay harness connector E27 terminal 2.
lHarness for short or open between transfer control unit harness connector terminal 27 and
transfer shift low relay harness connector terminal E29 terminal 2.
4.CHECK TRANSFER SHIFT RELAY
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Remove transfer shift high relay and transfer shift low relay.
3. Apply 12V direct current between transfer shift high relay and
transfer shift low relay terminals 1 and 2.
4. Check continuity between relay terminals 3 and 4, 3 and 5.
OK or NG
OK >> GO TO 5.
NG >> Replace transfer shift high relay or transfer shift low relay.
Connector Terminal Voltage (Approx.)
E27 2 - Ground
0V
E29 2 - Ground
SDIA3384E
Connector Terminal Voltage (Approx.)
E27 2 - Ground
Battery voltage
E29 2 - Ground
SDIA3385E
Terminal Condition Continuity
3-412V direct current supply between terminals 1 and 2 No
OFF Yes
3-512V direct current supply between terminals 1 and 2 Yes
OFF No
LDIA0099E
Page 3040 of 3171

TROUBLE DIAGNOSIS FOR SYSTEM
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7.CHECK ACTUATOR MOTOR OPERATION CIRCUIT
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector and the transfer control device (actuator motor) har-
ness connector.
3. Remove transfer shift high relay and transfer shift low relay. Refer toTF-21, "
Location of Electrical Parts".
4. Check continuity between the following terminals.
–Transfer control unit harness connector M106 terminal 47 and
transfer control device (actuator motor) harness connector F47
terminal 23.
–Transfer control unit harness connector M106 terminal 48 and
transfer control device (actuator motor) harness connector F47
terminal 24.
–Transfer control device (actuator motor) harness connector F47
terminal 24 and transfer shift high relay harness connector E27
terminal 3.
–Transfer control device (actuator motor) harness connector F47
terminal 23 and transfer shift low relay harness connector E29
terminal 3.
Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8.CHECK ACTUATOR MOTOR
1. Remove transfer control device. Refer toTF-105, "
Removal and Installation".
2. Check operation by applying battery voltage to transfer control
device (actuator motor) terminals 23 and 24.
CAUTION:
Be careful not to overheat the harness.
Does actuator motor rotate?
YES >> GO TO 9.
NO >> Replace transfer control device (actuator motor). Refer
toTF-105, "
Removal and Installation".
9.CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer toTF-38, "
Transfer Control Unit Input/Output Signal Ref-
erence Values".
OK or NG
OK >> GO TO 10.
NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
SDIA2811E
Continuity should exist.
SDIA3394E
Terminal Actuator motor
24 (Battery voltage) - 23 (Ground) Clockwise rotate
23 (Battery voltage) - 24 (Ground) Counterclockwise rotate
SDIA2386E
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TF-74
TROUBLE DIAGNOSIS FOR SYSTEM
10.CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK >>INSPECTION END
NG >> Replace transfer control unit. Refer toTF-100, "
Removal and Installation".
COMPONENT INSPECTION
Actuator Motor
1. Remove transfer control device. Refer toTF-105, "Removal and Installation".
2. Check operation by applying battery voltage to transfer control
device (actuator motor) terminals 23 and 24.
CAUTION:
Be careful not to overheat the harness.
3. If NG, replace transfer control device (actuator motor). Refer to
TF-105, "
Removal and Installation".
Transfer Shift Relay
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Remove transfer shift high relay and transfer shift low relay. Refer toTF-21, "
Location of Electrical Parts".
3. Apply 12V direct current between transfer relay terminals 1 and 2.
4. Check continuity between relay terminals 3 and 4, and 3 and 5.
5. If NG, replace transfer shift high relay or transfer shift low relay.
Refer toTF-21, "
Location of Electrical Parts".
Terminal Actuator motor
24 (Battery voltage) - 23 (Ground) Clockwise rotate
23 (Battery voltage) - 24 (Ground) Counterclockwise rotate
SDIA2386E
Terminal Condition Continuity
3-412V direct current supply between terminals 1 and 2 No
OFF Yes
3-512V direct current supply between terminals 1 and 2 Yes
OFF No
LDIA0099E
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TROUBLE DIAGNOSIS FOR SYSTEM
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COMPONENT INSPECTION
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect ATP switch harness connector.
3. Remove ATP switch. Refer toTF-21, "
Location of Electrical Parts".
4. Push and release ATP switch and check continuity between ATP
switch terminals 8 and 9.
5. If NG, replace the ATP switch. Refer toTF-21, "
Location of Elec-
trical Parts".
Park/Neutral Position SwitchEDS0032C
TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE
Data are reference value and are measured between each terminal and ground.
CAUTION:
When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
DIAGNOSTIC PROCEDURE
1.CHECK PARK/NEUTRAL POSITION SWITCH SIGNAL
1. Start engine.
2. Check voltage between transfer control unit harness connector
M105 terminal 33 and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
Terminal Condition Continuity
8-9Push ATP switch Yes
Release ATP switch No
SDIA2395E
TerminalWire
colorItem Condition Data (Approx.)
33 P Park/Neutral position switch Ignition switch: ONM/T shift lever neutral position 0V
Except the above Battery voltage
Connector Terminal ConditionVoltage
(Approx.)
M10533 -
GroundIgnition switch: ONM/T shift lever neutral
position0V
Except the aboveBattery
voltage
WDIA0245E
Page 3115 of 3171
WW-4
FRONT WIPER AND WASHER SYSTEM
FRONT WIPER AND WASHER SYSTEM
PFP:28810
Components Parts and Harness Connector LocationEKS00P4U
System DescriptionEKS00P4V
lAll front wiper relays (MAIN, LOW/HIGH) are located in IPDM E/R (intelligent power distribution module
engine room).
lWiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input termi-
nals. Terminal combination status is read by BCM (body control module) when the wiper switch is turned
ON.
lBCM controls front wiper LO, HI, and INT (intermittent) operation.
lIPDM E/R operates the wiper motor according to CAN communication signals from the BCM.
Power is supplied at all times
lto ignition relay (located in IPDM E/R), from battery directly,
lthrough 50A fusible link (letter G, located in fuse and fusible link box)
lto BCM terminal 57,
lthrough 30A fuse (No. 39, located in IPDM E/R)
lto front wiper main relay (located in IPDM E/R).
SKIB6805E
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