Nissan Murano: Steering Control System :: Dtc/circuit Diagnosis / C1602 No Tuning Set
DTC DETECTION LOGIC
| DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | |
|---|---|---|---|
| C1602 |
NO TUNING SET (No tuning set) |
Diagnosis condition | When ignition switch ON. |
| Signal (terminal) | — | ||
| Threshold | Information in power steering module is not the same | ||
| Diagnosis delay time | — | ||
POSSIBLE CAUSE
-
Harness or connector
-
Power steering control module
-
Battery power supply circuit
-
Ignition power supply circuit
-
Battery
-
Fuse
-
Ground circuit
FAIL-SAFE
Manual steering state
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always place the ignition switch in the OFF position and wait at least 10 seconds before conducting the next test.
>>
GO TO 2.
DTC REPRODUCTION PROCEDURE
CONSULT
-
Ignition switch OFF to ON.
-
Select "Self Diagnostic Result" mode of "EPS/DAST 3".
Is DTC “C1602” detected?
YES>>Proceed to diagnosis procedure. Refer to DTC Diagnosis Procedure.
NO>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>Confirmation after repair: Inspection End.
CHECK TERMINALS AND HARNESS CONNECTORS
-
Ignition switch OFF.
-
Check the power steering control module harness connector for disconnection or looseness.
-
Disconnect power steering control module harness connector and then check the power steering control module pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES>>GO TO 2.
NO>>Repair or replace error-detected parts.
CHECK POWER STEERING CONTROL MODULE GROUND CIRCUIT
Check continuity between power steering control module harness connector terminal and ground.
| Power steering control module | — | Continuity | |
|---|---|---|---|
| Connector | Terminal | ||
| E63 | 2 | Ground | Yes |
Is the inspection result normal?
YES>>GO TO 3.
NO>>Repair open circuit or short to ground or short to power in harness or connectors, and repair or replace malfunctioning parts.
CHECK POWER STEERING CONTROL MODULE POWER SUPPLY CIRCUIT (1)
-
Check voltage between power steering control module harness connector terminals and ground.
(+) (–) Voltage
(Approx.)Power steering control module Connector Terminal E63 1 Ground Battery voltage -
Ignition switch ON.
CAUTION:
Never start the engine.
-
Check voltage between power steering control module harness connector terminals and ground.
(+) (–) Voltage
(Approx.)Power steering control module Connector Terminal E63 1 Ground Battery voltage
Is the inspection result normal?
YES>>GO TO 5.
NO>>GO TO 4.
CHECK POWER STEERING CONTROL MODULE POWER SUPPLY CIRCUIT (2)
-
Ignition switch OFF.
-
Check the 100A fusible link (#D).
Is the inspection result normal?
YES>>Refer to Terminal Arrangement.
NO>>Repair or replace malfunctioning parts.
CHECK POWER STEERING CONTROL MODULE POWER SUPPLY CIRCUIT (3)
-
Ignition switch OFF.
-
Check voltage between power steering control module harness connector terminals and ground.
(+) (–) Voltage
(Approx.)Power steering control module Connector Terminal E62 5 Ground 0 V -
Ignition switch ON.
CAUTION:
Never start the engine.
-
Check voltage between power steering control module harness connector terminals and ground.
(+) (–) Voltage
(Approx.)Power steering control module Connector Terminal E62 5 Ground Battery voltage
Is the inspection result normal?
YES>>GO TO 7.
NO>>GO TO 6.
CHECK POWER STEERING CONTROL MODULE POWER SUPPLY CIRCUIT (4)
-
Ignition switch OFF.
-
Check the 10A fuse No. 46 in the IPDM E/R.
-
Check continuity and short between power steering control module harness connector terminal and fuse block (J/B) harness connector terminal.
Power steering control module Fuse block (J/B) Continuity Connector Terminal Connector Terminal E62 5 E119 35 Yes -
Check continuity between power steering control module harness connector terminal and ground.
Power steering control module — Continuity Connector Terminal E62 5 Ground No
Is the inspection result normal?
YES>>Perform the trouble diagnosis for ignition power supply circuit. Refer to Wiring Diagram.
NO>>Repair or replace malfunctioning parts.
CHECK SELF DIAGNOSTIC RESULT RESULTS
CONSULT
Select "Self Diagnostic Result" mode of "EPS/DAST 3".
Is DTC “C1602” detected?
YES>>Power steering control module is malfunctioning. Replace steering oil pump assembly. Refer to Removal and Installation.
NO>>Repair or replace malfunctioning parts.
C1601 Battery Volt
DTC Description
DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition
C1601
BATTERY VOLT
(Battery voltage)
Diagnosis condition
When ignition switch ON...
C1606 Eps Motor
DTC Description
DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition
C1606
EPS MOTOR
(EPS motor)
Diagnosis condition
When engine is running...
Other information:
Nissan Murano (Z52) 2015-2024 Service Manual: Steering Switch
Diagnosis Procedure CHECK STEERING SWITCH CIRCUIT Ignition switch OFF. Disconnect combination meter harness connector and spiral cable harness connector. Check continuity between combination meter harness connector and spiral cable harness connector...
Nissan Murano (Z52) 2015-2024 Owners Manual: Readiness for Inspection/Maintenance (I/M) test
WARNING A vehicle equipped with All -Wheel Drive (AWD) should never be tested using a two wheel dynamometer (such as the dynamometers used bysomestates for emissions testing), or similar equipment. Make sure you inform the test facility personnel that your vehicle is equipped with AWD before it is placed on a dynamometer...
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Unfastening the seat belts
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