Page 3481 of 5883
![NISSAN TIIDA 2007 Service Repair Manual HAC-148
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
PTC HEATER CONTROL SYSTEM
Check continuity between water temperature sensor harness con-
nector M64 (A) terminal 2 and PTC control unit NISSAN TIIDA 2007 Service Repair Manual HAC-148
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
PTC HEATER CONTROL SYSTEM
Check continuity between water temperature sensor harness con-
nector M64 (A) terminal 2 and PTC control unit](/manual-img/5/57395/w960_57395-3480.png)
HAC-148
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
PTC HEATER CONTROL SYSTEM
Check continuity between water temperature sensor harness con-
nector M64 (A) terminal 2 and PTC control unit harness connector
M84 (B) terminal 8.
Is the inspection result normal
YES >> GO TO 16.
NO >> Repair harness or connector.
16.CHECK VOLTAGE BETWEEN PTC CONTROL UNIT AND GROUND
1. Turn ignition switch ON.
2. Check voltage between PTC heater harness connector M84 ter-
minal 10 and ground.
Is the inspection result normal
YES >> 1. If equipped with manual transmission, GO TO 22.
2. If equipped with automatic transmission, GO TO 24.
NO >> GO TO 17.
17.CHECK CIRCUIT CONTINUITY BETWEEN PTC CONTROL UNIT AND FRONT AIR CONTROL
1. Turn ignition switch OFF.
2. Disconnect front air control and PTC control unit connector.
3. Check continuity between PTC control unit harness connector
M84 (A) terminal 10 and front air control harness connector M85
(B) terminal 9.
4. Check continuity between PTC control unit harness connector
M84 (A) terminal 10 and ground.
Is the inspection result normal
YES >> GO TO 18.
NO >> Repair harness or connector.
18.CHECK VOLTAGE BETWEEN AMBIENT SENSOR AND GROUND
AB
Continuity
Connector Terminal Connector Terminal
Water temperature
sensor: M642PTC control unit:
M848Yes
SJIA0923E
Te r m i n a l s
Vo l ta g e
(Approx.)
(+) (−)
Connector Terminal
Ground 5V
PTC control unit: M84 10
AWIIA0521ZZ
AB
Continuity
Connector Terminal Connector Terminal
PTC control unit: M84 10Front air control:
M859Yes
A
GroundContinuity
Connector Terminal
PTC control unit: M84 10 No
AWIIA0525ZZ
Page 3483 of 5883
![NISSAN TIIDA 2007 Service Repair Manual HAC-150
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
PTC HEATER CONTROL SYSTEM
Is the inspection result normal?
YES >> 1. Replace front air control. Refer to XX.
2. Go to self-diagnosis HA NISSAN TIIDA 2007 Service Repair Manual HAC-150
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
PTC HEATER CONTROL SYSTEM
Is the inspection result normal?
YES >> 1. Replace front air control. Refer to XX.
2. Go to self-diagnosis HA](/manual-img/5/57395/w960_57395-3482.png)
HAC-150
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
PTC HEATER CONTROL SYSTEM
Is the inspection result normal?
YES >> 1. Replace front air control. Refer to XX.
2. Go to self-diagnosis HAC-213, "
Front Air Control Self-Diagnosis" and perform self-diagnosis
STEP-2. Confirm that code No. 20 is displayed.
NO >> Repair harness or connector.
22.CHECK ENGINE RPM SIGNAL (MANUAL TRANSMISSION)
1. Reconnect PTC control unit.
2. Start the engine.
3. Check voltage between PTC control unit harness connector
M84 terminal 4 and ground.
Is the inspection result normal
YES >> GO TO 24.
NO >> GO TO 23.
23.CHECK CONTINUITY OF ENGINE RPM CIRCUIT BETWEEN FRONT AIR CONTROL AND PTC CON-
TROL UNIT (MANUAL TRANSMISSION)
1. Turn ignition switch OFF.
2. Disconnect ECM and PTC control unit connector.
3. Check continuity between PTC control unit harness connector
M84 (A) terminal 4 and ECM harness connector F10 (B) termi-
nal 13.
4. Check continuity between PTC control unit harness connector
M84 (A) terminal 4 and ground.
Is the inspection result normal
YES >> Replace ECM. Refer to XX.
NO >> Repair harness or connector.
24.CHECK BCM INPUT (FAN ON) SIGNAL
A
GroundContinuity
Connector Terminal
Ambient sensor:
E602No
Te r m i n a l s
Vo l ta g e
(Approx.) (+) (−)
Connector Terminal
Ground
PTC control unit: M84 4 4.2V
SJIA0924E
AB
Continuity
Connector Terminal Connector Terminal
PTC control unit: M84 4 ECM: F10 13 Yes
A
GroundContinuity
Connector Terminal
PTC control unit: M84 4 No
SJIA0925E
Page 3595 of 5883
![NISSAN TIIDA 2007 Service Repair Manual HAC-262
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
PTC HEATER CONTROL SYSTEM
Check continuity between water temperature sensor harness con-
nector M64 (A) terminal 2 and PTC control unit h NISSAN TIIDA 2007 Service Repair Manual HAC-262
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
PTC HEATER CONTROL SYSTEM
Check continuity between water temperature sensor harness con-
nector M64 (A) terminal 2 and PTC control unit h](/manual-img/5/57395/w960_57395-3594.png)
HAC-262
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
PTC HEATER CONTROL SYSTEM
Check continuity between water temperature sensor harness con-
nector M64 (A) terminal 2 and PTC control unit harness connector
M84 (B) terminal 8.
Is the inspection result normal
YES >> GO TO 16.
NO >> Repair harness or connector.
16.CHECK VOLTAGE BETWEEN PTC CONTROL UNIT AND GROUND
1. Turn ignition switch ON.
2. Check voltage between PTC heater harness connector M84 ter-
minal 10 and ground.
Is the inspection result normal
YES >> 1. If equipped with manual transmission, GO TO 22.
2. If equipped with automatic transmission, GO TO 24.
NO >> GO TO 17.
17.CHECK CIRCUIT CONTINUITY BETWEEN PTC CONTROL UNIT AND FRONT AIR CONTROL
1. Turn ignition switch OFF.
2. Disconnect front air control and PTC control unit connector.
3. Check continuity between PTC control unit harness connector
M84 (A) terminal 10 and front air control harness connector M85
(B) terminal 30.
4. Check continuity between PTC control unit harness connector
M84 (A) terminal 10 and ground.
Is the inspection result normal
YES >> GO TO 18.
NO >> Repair harness or connector.
18.CHECK VOLTAGE BETWEEN AMBIENT SENSOR AND GROUND
AB
Continuity
Connector Terminal Connector Terminal
Water temperature
sensor: M642PTC control unit:
M848Yes
SJIA0923E
Te r m i n a l s
Vo l ta g e
(Approx.)
(+) (−)
Connector Terminal
Ground 5V
PTC control unit: M84 10
AWIIA0521ZZ
AB
Continuity
Connector Terminal Connector Terminal
PTC control unit: M84 10Front air control:
M8530 Yes
A
GroundContinuity
Connector Terminal
PTC control unit: M84 10 No
AWIIA0522ZZ
Page 3597 of 5883
![NISSAN TIIDA 2007 Service Repair Manual HAC-264
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
PTC HEATER CONTROL SYSTEM
Is the inspection result normal?
YES >> 1. Replace front air control. Refer to XX.
2. Go to self-diagnosis HAC- NISSAN TIIDA 2007 Service Repair Manual HAC-264
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
PTC HEATER CONTROL SYSTEM
Is the inspection result normal?
YES >> 1. Replace front air control. Refer to XX.
2. Go to self-diagnosis HAC-](/manual-img/5/57395/w960_57395-3596.png)
HAC-264
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
PTC HEATER CONTROL SYSTEM
Is the inspection result normal?
YES >> 1. Replace front air control. Refer to XX.
2. Go to self-diagnosis HAC-213, "
Front Air Control Self-Diagnosis" and perform self-diagnosis
STEP-2. Confirm that code No. 20 is displayed.
NO >> Repair harness or connector.
22.CHECK ENGINE RPM SIGNAL (MANUAL TRANSMISSION)
1. Reconnect PTC control unit.
2. Start the engine.
3. Check voltage between PTC control unit harness connector
M84 terminal 4 and ground.
Is the inspection result normal
YES >> GO TO 24.
NO >> GO TO 23.
23.CHECK CONTINUITY OF ENGINE RPM CIRCUIT BETWEEN FRONT AIR CONTROL AND PTC CON-
TROL UNIT (MANUAL TRANSMISSION)
1. Turn ignition switch OFF.
2. Disconnect ECM and PTC control unit connector.
3. Check continuity between PTC control unit harness connector
M84 (A) terminal 4 and ECM harness connector F10 (B) termi-
nal 13.
4. Check continuity between PTC control unit harness connector
M84 (A) terminal 4 and ground.
Is the inspection result normal
YES >> Replace ECM. Refer to XX.
NO >> Repair harness or connector.
24.CHECK BCM INPUT (FAN ON) SIGNAL
A
GroundContinuity
Connector Terminal
Ambient sensor:
E602No
Te r m i n a l s
Vo l ta g e
(Approx.) (+) (−)
Connector Terminal
Ground
PTC control unit: M84 4 4.2V
SJIA0924E
AB
Continuity
Connector Terminal Connector Terminal
PTC control unit: M84 4 ECM: F10 13 Yes
A
GroundContinuity
Connector Terminal
PTC control unit: M84 4 No
SJIA0925E
Page 3754 of 5883
LAN-14
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
CAN COMMUNICATION SYSTEM
CAN Communication Control Circuit
INFOID:0000000001162755
*: These are the only control units wired with both ends of CAN communication system.
SKIB8713E
Component System description
CAN controller It controls CAN communication signal transmission and reception, error detection, etc.
Transceiver ICIt converts digital signal into CAN communication signal, and CAN communication signal into digital
signal.
Noise filter It eliminates noise of CAN communication signal.
Termination circuit
*
(Resistance of approx. 120 Ω)It produces potential difference.
Page 3757 of 5883
![NISSAN TIIDA 2007 Service Repair Manual LAN
TROUBLE DIAGNOSIS
LAN-17
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
C
D
E
F
G
H
I
J
K
L B A
O
P N Example: Data link connector branch line open circuit
NOTE:
When data link connector branch line is NISSAN TIIDA 2007 Service Repair Manual LAN
TROUBLE DIAGNOSIS
LAN-17
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
C
D
E
F
G
H
I
J
K
L B A
O
P N Example: Data link connector branch line open circuit
NOTE:
When data link connector branch line is](/manual-img/5/57395/w960_57395-3756.png)
LAN
TROUBLE DIAGNOSIS
LAN-17
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
C
D
E
F
G
H
I
J
K
L B A
O
P N Example: Data link connector branch line open circuit
NOTE:
When data link connector branch line is open, transmission and reception of CAN communication signals
are not affected. Therefore, no symptoms occur. However, be sure to repair malfunctioning circuit.
The model (all units on CAN communication system are Diag on CAN) cannot perform CAN diagnosis with
CONSULT-III if the following error occurs. The error is judged by the symptom.
EPS control unit Normal operation.
Combination meter Shift position indicator and OD OFF indicator turn OFF.
Warning lamps turn ON.
ABS actuator and electric unit (control unit) Normal operation.
TCM No impact on operation.
IPDM E/R Normal operation.Unit name Symptom
SKIB8739E
Unit name Symptom
ECM
Normal operation. BCM
EPS control unit
Combination meter
ABS actuator and electric unit (control unit)
TCM
IPDM E/R
Error Difference of symptom
Data link connector branch line open circuit Normal operation.
CAN-H, CAN-L harness short-circuitMost of the units which are connected to the CAN communication
system enter fail-safe mode or are deactivated.
Page 3760 of 5883
![NISSAN TIIDA 2007 Service Repair Manual LAN-20
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
TROUBLE DIAGNOSIS
Example: CAN DIAG SUPPORT MNTR indication
Without PAST
With PAST
MONITOR ITEM (ON-BOARD DIAGNOSIS)
NOTE:
For some models, CAN communica NISSAN TIIDA 2007 Service Repair Manual LAN-20
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
TROUBLE DIAGNOSIS
Example: CAN DIAG SUPPORT MNTR indication
Without PAST
With PAST
MONITOR ITEM (ON-BOARD DIAGNOSIS)
NOTE:
For some models, CAN communica](/manual-img/5/57395/w960_57395-3759.png)
LAN-20
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
TROUBLE DIAGNOSIS
Example: CAN DIAG SUPPORT MNTR indication
Without PAST
With PAST
MONITOR ITEM (ON-BOARD DIAGNOSIS)
NOTE:
For some models, CAN communication diagnosis result is received from the vehicle monitor.
JSMIA0015GB
Item PRSNT Description
Initial diagnosisOK Normal at present
NG Control unit error (Except for some control units)
Transmission diagnosisOK Normal at present
UNKWNUnable to transmit signals for 2 seconds or more.
Diagnosis not performed
Control unit name
(Reception diagnosis)OK Normal at present
UNKWNUnable to receive signals for 2 seconds or more.
Diagnosis not performed
No control unit for receiving signals. (No applicable optional parts)
Item PRSNT PAST Description
Transmission diagnosisOKOK Normal at present and in the past
1 – 39Normal at present, but unable to transmit signals for 2 seconds or more
in the past. (The number indicates the number of ignition switch cycles
from OFF to ON.)
UNKWN 0 Unable to transmit signals for 2 seconds or more at present.
Control unit name
(Reception diagnosis)OKOK Normal at present and in the past
1 – 39Normal at present, but unable to receive signals for 2 seconds or more
in the past. (The number indicates the number of ignition switch cycles
from OFF to ON.)
UNKWN 0 Unable to receive signals for 2 seconds or more at present.
––Diagnosis not performed.
No control unit for receiving signals. (No applicable optional parts)
Page 3761 of 5883
![NISSAN TIIDA 2007 Service Repair Manual LAN
TROUBLE DIAGNOSIS
LAN-21
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
C
D
E
F
G
H
I
J
K
L B A
O
P N
Example: Vehicle Display
How to Use CAN Communication Signal ChartINFOID:0000000001162763
The CAN co NISSAN TIIDA 2007 Service Repair Manual LAN
TROUBLE DIAGNOSIS
LAN-21
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
C
D
E
F
G
H
I
J
K
L B A
O
P N
Example: Vehicle Display
How to Use CAN Communication Signal ChartINFOID:0000000001162763
The CAN co](/manual-img/5/57395/w960_57395-3760.png)
LAN
TROUBLE DIAGNOSIS
LAN-21
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
C
D
E
F
G
H
I
J
K
L B A
O
P N
Example: Vehicle Display
How to Use CAN Communication Signal ChartINFOID:0000000001162763
The CAN communication signal chart lists the signals needed for trouble diagnosis. It is useful for detecting
the root cause by finding a signal related to the symptom, and by checking transmission and reception unit.
ItemResult indi-
catedError counter Description
CAN_COMM
(Initial diagnosis)OK 0 Normal at present
NG 1 – 50Control unit error
(The number indicates how many times diagnosis has been
run.)
CAN_CIRC_1
(Transmission diagnosis)OK 0 Normal at present
UNKWN 1 – 50Unable to transmit for 2 seconds or more at present.
(The number indicates how many times diagnosis has been
run.)
CAN_CIRC_2 – 9
(Reception diagnosis of each unit)OK 0 Normal at present
UNKWN 1 – 50Unable to transmit for 2 seconds or more at present.
(The number indicates how many times diagnosis has been
run.)
Diagnosis not performed.
No control unit for receiving signals. (No applicable optional
parts)
SKIB8715E