IPDM ER NISSAN TEANA 2003 Service Manual

VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
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6. CHECK HARNESS BETWEEN TCM AND REVOLUTION SENSOR (POWER)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and revolution sensor harness connector.
3. Check continuity between TCM connector terminals and revolu-
tion sensor harness connector terminal. Refer to AT- 4 2 , "
Circuit
Diagram" and AT- 1 5 8 , "Wiring Diagram — AT — MAIN" .
4. If OK, check harness for short to ground and short power.
5. Reinstall any part removed.
OK or NG
OK >> 10A fuse (No.83, located in the IPDM E/R) or ignition switch are malfunctioning.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK HARNESS BETWEEN TCM AND REVOLUTION SENSOR (SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and revolution sensor harness connector.
3. Check continuity between TCM connector terminal and revolu-
tion sensor harness connector terminal.
4. If OK, check harness for short to ground and short power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK DTC
Perform AT- 8 0 , "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
Item Connector Terminal Continuity
TCM connector F104 10
Ye s
Revolution sensor harness
connectorF15 1
TCM connector F104 19
Ye s
Revolution sensor harness
connectorF15 1
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Item Connector Terminal Continuity
TCM connector F105 42
Ye s
Revolution sensor harness
connectorF15 3
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AT-112
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)

Data are reference value and are measured between each terminal and ground.
Diagnostic ProcedureBCS00122
1. CHECK TCM POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground.
3. Turn ignition switch OFF.
4. Check voltage between TCM connector terminals and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING ITEM
Check the following items:

Harness for short or open between ignition switch and TCM connector terminals 10, 19

Harness for short or open between battery and TCM connector terminal 28

15A fuse (No.17, located in the fuse block) and 10A fuse (No83, located in the IPDM E/R)

Ignition switch. Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
Terminal Wire color Item ConditionJudgement stan-
dard (Approx.)
10 Y Power source
or When turning ignition switch ON. Battery voltage
When turning ignition switch OFF. 0 V
19 Y Power sourceWhen turning ignition switch ON. Battery voltage
When turning ignition switch OFF. 0 V
28 Y/RPower source
(Memory back-up)Always Battery voltage
42 B Sensor ground Always 0 V
47 GA/T fluid temperature
sensor
and When A/T fluid temperature is
20°C (68°F).1.5 V
When A/T fluid temperature is
80°C (176°F).0.5 V
Item Connector TerminalJudgement standard
(Approx.)
TCM connectorF10410
Battery voltage 19
F105 28
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Name Connector TerminalJudgement standard
(Approx.)
TCM connectorF10410 0 V
19 0 V
F105 28 Battery voltage
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AT-124
TURBINE REVOLUTION SENSOR

5. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 6 4 , "
TCM Terminals and Reference Value" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
6. CHECK HARNESS BETWEEN TCM AND TURBINE REVOLUTION SENSOR (POWER)
1. Turn ignition switch OFF.
2. Disconnect the turbine revolution sensor (power train revolution sensor) harness connector.
3. Check continuity between TCM connector terminals and turbine
revolution sensor (power train revolution sensor) harness con-
nector terminal. Refer to AT- 4 2 , "
Circuit Diagram" and AT- 1 5 8 ,
"Wiring Diagram — AT — MAIN" .
4. If OK, check harness for short to ground and short power.
5. Reinstall any part removed.
OK or NG
OK >> 10A fuse (No.83, located in the IPDM E/R) or ignition switch are malfunctioning.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK HARNESS BETWEEN TCM AND TURBINE REVOLUTION SENSOR (SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect the turbine revolution sensor (power train revolution sensor) harness connector.
3. Check continuity between TCM connector terminal and turbine
revolution sensor (power train revolution sensor) harness con-
nector terminal.
4. If OK, check harness for short to ground and short power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
Item Connector Terminal Continuity
TCM connector F104 10
Ye s Turbine revolution sensor
(power train revolution sen-
sor) harness connectorF38 1
TCM connector F104 19
Ye s Turbine revolution sensor
(power train revolution sen-
sor) harness connectorF38 1
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Item Connector Terminal Continuity
TCM connector F105 42
Ye s Turbine revolution sensor
(power train revolution sen-
sor) harness connectorF38 3
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MAIN POWER SUPPLY AND GROUND CIRCUIT
AT-159
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Data are reference value and are measured between each terminal and ground.
Diagnostic ProcedureBCS0026M
1. CHECK TCM POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground.
3. Turn ignition switch OFF.
4. Check voltage between TCM connector terminals and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING ITEM
Check the following items:

Harness for short or open between ignition switch and TCM connector terminals 10, 19

Harness for short or open between battery and TCM connector terminal 28

10A fuse (No.17, located in the fuse block) and 10A fuse (No83, located in the IPDM E/R)

Ignition switch. Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
Te r m i -
nalWire color Item ConditionJudgement stan-
dard
(Approx.)
10 Y Power source
or When turning ignition switch ON. Battery voltage
When turning ignition switch OFF. 0 V
19 Y Power sourceWhen turning ignition switch ON. Battery voltage
When turning ignition switch OFF. 0 V
25 B Ground Always 0 V
28 Y/RPower source
(Memory back-up)Always Battery voltage
48 B Ground Always 0 V
ItemConnec-
torTerminal Judgement standard (Approx.)
TCM connectorF10410
Battery voltage 19
F105 28
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ItemConnec-
torTerminal Judgement standard (Approx.)
TCM connectorF10410 0V
19 0V
F105 28 Battery voltage
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TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-173
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A/T CHECK Indicator Lamp Does Not Come OnBCS00149
SYMPTOM:
A/T CHECK indicator lamp does not come on for about 2 seconds when turning ignition switch ON.
DIAGNOSTIC PROCEDURE
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to AT- 6 9 , "
SELF-DIAGNOSTIC RESULT MODE" .
Is a malfunction in CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 1 3 3 , "CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK TCM POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground.
Refer to AT- 1 5 8 , "
Wiring Diagram — AT — MAIN" .
3. Turn ignition switch OFF.
4. Check voltage between TCM connector terminals and ground.
Refer to AT- 1 5 8 , "
Wiring Diagram — AT — MAIN" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING ITEM
Check the following items:

Harness for short or open between ignition switch and TCM connector terminals 10, 19
Refer to AT- 1 5 8 , "
Wiring Diagram — AT — MAIN" .

Harness for short or open between battery and TCM connector terminal 28
Refer to AT- 1 5 8 , "
Wiring Diagram — AT — MAIN" .

15A fuse (No.17, located in the fuse block) and 10A fuse (No.83, located in the IPDM E/R)

Ignition switch. Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
Item Connector Terminal Judgement standard (Approx.)
TCM connectorF10410
Battery voltage 19
F105 28
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ItemConnec-
torTerminal Judgement standard (Approx.)
TCM connectorF10410 0 V
19 0 V
F105 28 Battery voltage
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AIR CONDITIONER CONTROL
ATC-27
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MAGNET CLUTCH CONTROL
When A/C switch is pressed (with FAN ON), press DEF switch, unified meter and A/C amp. transmits com-
pressor ON signal to BCM.
BCM sends compressor ON signal to ECM, via CAN communication.
ECM judges whether compressor can be turned ON, based on each sensor status (refrigerant pressure sen-
sor signal, throttle angle, etc.). If it judges compressor can be turned ON, it sends compressor ON signal to
IPDM E/R, via CAN communication.
Upon receipt of compressor ON signal from ECM, IPDM E/R turns air conditioner relay ON to operate com-
pressor.
SELF-DIAGNOSIS SYSTEM
The self-diagnosis system is built into the unified meter and A/C amp. to quickly locate the cause of malfunc-
tions.
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TROUBLE DIAGNOSIS
ATC-79
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SYSTEM DESCRIPTION
Unified meter and A/C amp. controls compressor operation by intake air temperature and signal from ECM.
Low Temperature Protection Control
Unified meter and A/C amp. will turn the compressor ON or OFF as determined by a signal detected by intake
sensor.
When intake air temperature is higher than 4°C (39°F), the compres-
sor turns ON. The compressor turns OFF when intake air tempera-
ture is lower than 2.5°C (37°F).
DIAGNOSIS PROCEDURE FOR MAGNET CLUTCH
SYMPTOM: Magnet clutch does not engage when A/C switch is ON.
1. CHECK INTAKE SENSOR CIRCUIT
Check intake sensor. Refer to AT C - 4 7 , "
FUNCTION CONFIRMATION PROCEDURE" , see No. 11.
OK or NG
OK >> GO TO 2.
NG >> Malfunctioning intake sensor: Refer to ATC-105, "
Intake Sensor Circuit" .
2. PERFORM AUTO ACTIVE TEST
Refer to PG-21, "
Auto Active Test" .
Does the magnet clutch operate?
YES >>
WITH CONSULT-II: GO TO 5.

WITHOUT CONSULT-II: GO TO 6.
NO >> Check 10 A fuse (No. 79, located in IPDM E/R). Refer to PG-25, "
IPDM E/R Terminal Arrange-
ment" , and GO TO 3.
RHA094GD
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ATC-80
TROUBLE DIAGNOSIS

3. CHECK CIRCUIT CONTINUITY BETWEEN IPDM E/R AND COMPRESSOR
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and compressor connector.
3. Check continuity between IPDM E/R harness connector E8 ter-
minal 33 and compressor harness connector F2 terminal 1.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK MAGNET CLUTCH CIRCUIT
Check for operation sound when applying battery voltage direct cur-
rent to terminal.
OK or NG
OK >> 1. Replace IPDM E/R.
2. Go to self-diagnosis procedure AT C - 4 7 , "
FUNCTION
CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-4. Confirm that magnet clutch opera-
tion normal.
NG >> 1. Replace compressor. Refer to ATC-134, "
Removal
and Installation of Compressor" .
2. Go to self-diagnosis procedure AT C - 4 7 , "
FUNCTION
CONFIRMATION PROCEDURE" and perform self-diagnosis STEP-4. Confirm that magnet
clutch operation normal.
5. CHECK BCM INPUT (COMPRESSOR ON) SIGNAL
Check compressor ON/OFF signal. Refer to AT C - 3 4 , "
CONSULT-II
Function (BCM)" .
OK or NG
OK >> GO TO 8.
NG >> GO TO 6.
6. CHECK CIRCUIT CONTINUITY BETWEEN BCM AND UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF.
2. Disconnect BCM connector and unified meter and A/C amp.
connector.
3. Check continuity between BCM harness connector M3 terminal
27 and unified meter and A/C amp. harness connector M45 ter-
minal 42.
OK or NG
OK >> GO TO 7.
NG >> Repair harness or connector.33 – 1 : Continuity should exist.
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A/C SW ON : AIR COND SW ON
A/C SW OFF : AIR COND SW OFF
R J I A 1111 E
27 – 42 : Continuity should exist.
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TROUBLE DIAGNOSIS
ATC-83
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12. CHECK CAN COMMUNICATION
Check CAN communication. Refer to BCS-14, "
CAN Communication Inspection Using CONSULT-II (Self-
Diagnosis)" .

BCM – ECM

ECM – IPDM E/R

ECM – Unified meter and A/C amp.
OK or NG
OK >> Replace ECM.
NG >> Repair or replace malfunctioning part(s).
COMPONENT INSPECTION
Refrigerant Pressure Sensor
The refrigerant pressure sensor is attached to the condenser.
Make sure that the A/C refrigerant pressure and the sensor output
voltage are as shown in the A/C operating condition figure. Refer to
EC-339, "
REFRIGERANT PRESSURE SENSOR" (QR engine) or
EC-748, "
REFRIGERANT PRESSURE SENSOR" (VQ engine).
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REFRIGERANT LINES
ATC-139
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Removal and Installation of High-pressure Pipe 1 (Engine Compartment)BJS000HT
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove extension cowl top lower panel. Refer to EI-21, "
COWL TOP" .
3. Remove low-pressure flexible hose and low-pressure pipe 1 (VQ engine). Refer to ATC-137, "
Removal
and Installation of Low-pressure Flexible Hose and Low-pressure Pipe 1" .
4. Remove radiator reservoir tank. Refer to CO-13, "
RADIATOR" (QR engine) or CO-37, "RADIATOR" (VQ
engine).
5. Remove IPDM E/R. Refer to PG-28, "
Removal and Installation of IPDM E/R" .
6. Remove power steering oil reservoir tank mounting nuts.
7. Remove vehicle harness connector from bracket.
8. Remove high-pressure pipe 1 from clips.
9. Remove high-pressure flexible hose from vehicle clips.
10. Disconnect one-touch joints of high-pressure pipe 1.
a. Set a disconnector (SST: 9253089908) on A/C piping.
b. Slide a disconnector toward vehicle front until it clicks.
c. Slide A/C piping toward vehicle front and disconnect it.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
11. Remove mounting bolt, and then remove high-pressure pipe 1.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings of A/C piping with new ones, and then apply compressor oil to it when installing
it.

Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.

Insert piping securely until a click is heard.

After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.

When recharging refrigerant, check for leaks.
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