Nissan Juke Service and Repair Manual : ASCD steering switch
Component Function Check
1.CHECK ASCD STEERING SWITCH FUNCTION
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector terminals under the following conditions.

Is the inspection result normal? YES >> INSPECTION END
NO >> Go to EC-1011, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Check ground connection E38. Refer to Ground inspection in GI-44, "Circuit Inspection".
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK ASCD STEERING SWITCH CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect combination switch (spiral cable) harness connector.
3. Disconnect ECM harness connector.
4. Check the continuity between combination switch (spiral cable) harness connector and ECM harness connector.

5. Also check harness for short to ground and short to power.
Is the inspection result normal? YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
• Harness connector E105, M77 • Combination switch (spiral cable) • Harness for open or short between ECM and combination switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between combination switch (spiral cable) harness connector and ECM harness connector.

2. Also check harness for short to ground and short to power.
Is the inspection result normal? YES >> GO TO 6.
NO >> GO TO 5.
5.DETECT MALFUNCTIONING PART
• Harness connector E105, M77 • Combination switch (spiral cable) • Harness for open or short between ECM and combination switch (spiral cable)
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK ASCD STEERING SWITCH
Refer to EC-1012, "Component Inspection".
Is the inspection result normal? YES >> GO TO 7.
NO >> Replace ASCD steering switch.
7.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident", ???GROUND INSPECTION??? and ???INCIDENT SIMULATION TESTS???.
>> INSPECTION END
Component Inspection
1.CHECK ASCD STEERING SWITCH-I
1. Turn ignition switch OFF.
2. Disconnect combination switch (spiral cable) harness connector.
3. Check the continuity between combination switch (spiral cable) harness connector terminals under the following condition.

Is the inspection result normal? YES >> GO TO 2.
NO >> Replace ASCD steering switch.
2.CHECK ASCD STEERING SWITCH-II
Check resistance between combination switch (spiral cable) harness connector terminals under the following conditions.

Is the inspection result normal? YES >> INSPECTION END
NO >> Replace ASCD steering switch.
ASCD main switch
Component Function Check
1.CHECK ASCD MAIN SWITCH FUNCTION
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector terminals under the following
conditions.
Is the inspe ...
CAN communication circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellen ...
Other materials:
P1610 lock mode
Description
ECM forcibly switches to the mode that inhibits engine start, when engine
start operation is performed 5 times
or more while communication between ECM and BCM is not normal, or when engine
start operation is performed
5 times or more using the unregistered ignition key.
DTC Logic ...
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
driver and front passenger for certain
types of collision. Information necessary to service the system safely is
include ...
P2127, P2128 APP sensor
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn
ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following proced ...
