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Nissan Titan A60. Manual - part 853

SEC-50

< ECU DIAGNOSIS INFORMATION >

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

Terminal

Wire

color

Signal name

Signal

input/

output

Measuring condition

Reference value

(Approx.)

Igni-

tion

switch

Operation or condition

B/Y

Battery power supply

Input

OFF

—

Battery voltage

Battery power supply

Input

OFF

—

Battery voltage

ECM relay

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

W/L

ECM relay

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

Throttle control mo-
tor relay

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

W/B

ECM relay control

Input

—

Ignition switch ON or START

Ignition switch OFF or ACC

Battery voltage

R/B

Fuse 54

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

Fuse 45
(Canada only)

Output

Daytime light system active

Daytime light system inactive

Battery voltage

Y/B

A/C compressor

Output

ON or

START

A/C switch ON or defrost A/C switch

Battery voltage

A/C switch OFF or defrost A/C switch

L/W

Ignition switch sup-
plied power

Input

—

OFF or ACC

ON or START

Battery voltage

B/Y

Fuel pump relay

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

Y/R

Fuse 49

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

LG/B

Fuse 50

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

Fuse 51

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

Fuse 55

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

W/R

Starter motor

Output

START

—

Battery voltage

Ignition switch sup-
plied power

Input

—

OFF or ACC

START

Battery voltage

Battery power supply

Output

OFF

—

Battery voltage

GR/W

Door mirror defogger
output signal (if
equipped)

Output

—

When rear defogger switch is ON

Battery voltage

When rear defogger switch is OFF

W/B

Fuse 38
(With trailer tow)

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

Fuse 53

Output

—

Ignition switch ON or START

Battery voltage

Ignition switch OFF or ACC

Wiper low speed sig-
nal

Output

ON or

START

Wiper switch

OFF

Battery voltage

LO or INT

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

SEC-51

< ECU DIAGNOSIS INFORMATION >

SEC

L/B

Wiper high speed
signal

Output

ON or

START

Wiper switch

OFF, LO, INT

Battery voltage

Power generation
command signal

Output

—

Ignition switch ON

6.3 V

40% is set on "Active test," "ALTER-
NATOR DUTY" of "ENGINE"

3.8 V

40% is set on "Active test," "ALTER-
NATOR DUTY" of "ENGINE"

1.4 V

Ground

Input

—

CAN-H

—

CAN-L

—

Oil pressure switch

Input

—

Engine running

Battery voltage

Engine stopped

L/Y

Wiper auto stop sig-
nal

Input

ON or

START

Wiper switch

OFF, LO, INT

Battery voltage

Daytime light relay
control
(Canada only)

Input

Daytime light system active

Daytime light system inactive

Battery voltage

G/W

Horn relay control

Input

When door locks are operated using
keyfob (OFF

→ ON)*

Battery voltage

→

Fuel pump relay con-
trol

Input

—

Ignition switch ON or START

Ignition switch OFF or ACC

Battery voltage

Throttle control mo-
tor relay control

Input

—

Ignition switch ON or START

Ignition switch OFF or ACC

Battery voltage

B/R

Starter relay (inhibit
switch)

Input

ON or

START

Selector lever in "P" or "N"

Selector lever any other position

Battery voltage

Terminal

Wire

color

Signal name

Signal

input/

output

Measuring condition

Reference value

(Approx.)

Igni-

tion

switch

Operation or condition

JPMIA0001GB

JPMIA0002GB

JPMIA0003GB

SEC-52

< ECU DIAGNOSIS INFORMATION >

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

*: When horn reminder is ON

Fail Safe

INFOID:0000000006709570

CAN COMMUNICATION CONTROL

When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN

communication recovers normally, it also returns to normal control.

If No CAN Communication Is Available With BCM

R/L

Trailer tow relay
(With trailer tow)
Illumination
(Without trailer tow)

Output

Lighting switch
must be in the 1st
position

OFF

Battery voltage

W/R

Front fog lamp (LH)
(if equipped)

Output

ON or

START

Lighting switch
must be in the
2nd position
(LOW beam is
ON) and the front
fog lamp switch

OFF

Battery voltage

W/R

Front fog lamp (RH)
(if equipped)

Output

ON or

START

Lighting switch
must be in the
2nd position
(LOW beam is
ON) and the front
fog lamp switch

OFF

Battery voltage

LH low beam head-
lamp

Output

—

Lighting switch in 2nd position

Battery voltage

R/Y

RH low beam head-
lamp

Output

—

Lighting switch in 2nd position

Battery voltage

LH high beam head-
lamp

Output

—

Lighting switch in 2nd position and
placed in HIGH or PASS position

Battery voltage

(With DTRL)

L/W

(Without DTRL)

RH high beam head-
lamp

Output

—

Lighting switch in 2nd position and
placed in HIGH or PASS position

Battery voltage

R/L

Parking, license, tail
lamp and rear audio
remote control unit

Output

Lighting switch
1st position

OFF

Battery voltage

Ground

Input

—

B/W

Rear window defog-
ger relay (if
equipped)

Output

ON or

START

Rear defogger switch ON

Battery voltage

Rear defogger switch OFF

Fuse 32
(With trailer tow)

Output

OFF

—

Battery voltage

Terminal

Wire

color

Signal name

Signal

input/

output

Measuring condition

Reference value

(Approx.)

Igni-

tion

switch

Operation or condition

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 LH/RH relays 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

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

SEC-53

< ECU DIAGNOSIS INFORMATION >

SEC

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.

DTC Index

INFOID:0000000006709571

NOTE:

The details of TIME display are as follows.

• CRNT: The malfunctions that are detected now

• 1 - 39: The number is indicated when it is normal at present and a malfunction was detected in the past. It

increases like 0

→ 1 → 2 ··· 38 → 39 after returning to the normal condition whenever IGN OFF → ON. It is

fixed to 39 until the self-diagnosis results are erased if it is over 39. It returns to 0 when a malfunction is

detected again in the process.

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 (if equipped)

Rear window defogger relay OFF

A/C compressor

A/C relay OFF

Front fog lamps (if equipped)

Front fog lamp relay OFF

Control part

Fail-safe in operation

Ignition switch

Ignition relay

Tail lamp relay

—

OFF

—

Ignition switch

Front wiper switch

Auto stop signal

OFF

Front wiper stop position signal cannot be
input 10 seconds.

The signal does not change for 10 seconds.

CONSULT-III display

Fail-safe

TIME

NOTE

Refer to

No DTC is detected.
further testing
may be required.

—

U1000: CAN COMM CIRCUIT

CRNT

1 – 39

PCS-15

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