Nissan Sentra Service Manual: U1002 System comm (CAN)

Nissan Sentra Service Manual / Brakes / Brake control system / Dtc/circuit diagnosis / U1002 System comm (CAN)

DTC Logic

DTC DETECTION LOGIC

DTC	Display item	Malfunction detected condition	Possible cause
U1002	SYSTEM COMM(CAN)	When ABS actuator and electric unit (control unit) is not transmitting or receiving CAN communication signal for 2 seconds or less.	CAN communication line ABS actuator and electric unit (control unit)

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If вЂњDTC CONFIRMATION PROCEDUREвЂќ has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.DTC REPRODUCTION PROCEDURE

With CONSULT

Turn the ignition switch ON.
Perform self diagnosis for вЂњABSвЂќ.

Is DTC вЂњU1002вЂќ detected? YES >> Proceed to BRC-88, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

CAUTION:

Never apply 7.0 V or more to the measurement terminal.
Use a tester with open terminal voltage of 7.0 V or less.
Turn the ignition switch OFF and disconnect the battery cable from the negative terminal when checking the harness.

1.CHECK CAN DIAGNOSIS SUPPORT MONITOR

Select вЂњABSвЂќ and вЂњCAN Diagnosis Support MonitorвЂќ in order with CONSULT.
Check malfunction history between each control unit connected to ABS actuator and electric unit (control unit).

Check the result of вЂњPASTвЂќ? All items are вЂњOKвЂќ>>Refer to GI-39, "Intermittent Incident".

вЂњTRANSMIT DIAGвЂќ is other than вЂњOKвЂќ>>GO TO 2.

A control unit other than ABS actuator and electric unit (control unit) is anything other than вЂњOKвЂќ>>GO TO 3.

2.CHECK TRANSMITTING SIDE UNIT

Check the ABS actuator and electric unit (control unit) harness connector terminals 14 and 26 for damage or loose connection.

Is the inspection result normal? YES >> Erase self-diagnosis results. Then perform self-diagnosis for вЂњABSвЂќ with CONSULT.

NO >> Recheck terminals for damage or loose connection.

3.CHECK APPLICABLE CONTROL UNIT

Check damage or loose connection of each CAN communication line harness connector terminals.

Is the inspection result normal? YES >> Erase self-diagnosis results. Then perform self-diagnosis for applicable control unit with CONSULT.

NO >> Recheck terminals for damage or loose connection.

U1000 CAN Comm circuit

DTC Logic DTC DETECTION LOGIC DTC Display Item Malfunction detected condition Possible causes U1000 CAN COMM CIRCUIT When CAN communication signal is not continuously ...

U1010 Control unit (CAN)

Description Initial diagnosis of ABS actuator and electric unit (control unit) DTC Logic DTC DETECTION LOGIC DTC Items (CONSULT screen terms) DTC detection condition Possible ...

Other materials:

Changing engine oil filter
Park the vehicle on a level surface and apply the parking brake. Turn the engine off. Place a large drain pan under the oil filter C . Loosen the oil filter with an oil filter wrench by turning it counterclockwise. Then remove the oil filter by turning it by hand. CAUTION Be c ...

Evap canister
Exploded View EVAP canister bracket EVAP canister filter drain hose EVAP canister filter EVAP canister protector EVAP hose EVAP canister vent control valve O-ring EVAP canister O-ring EVAP canister control pressure sensor Clip Nut Removal and Installation EVAP ...

Air cleaner filter
Exploded View Mass air flow sensor Mass air flow gasket Clamp Air duct (suction side) Resonator Clamp PCV hose Clamp Clamp Air cleaner cover Mounting rubber Air cleaner filter Air cleaner body Air duct inlet (lower) Air duct inlet (upper) Grommet Bracket Gro ...