1. PCU DTC check.
.png)
DTC (POWER CONTROL UNIT)
Are there any DTCs?
YES
Go to indicated DTC troubleshooting.
NO
Go to step 2.
2. Shorted wire check (KEY SW line):
Under-dash fuse/relay box connector D (24P)Keyless access control unit connector A (32P)
.png)
Is there continuity?
YES
Repair a short to ground in the wire.
NO
The KEY SW wire is not shorted. Go to step 3.
3. Open wire check (KEY SW line):
.png)
Is there continuity?
YES
The KEY SW wire is OK. Go to step 4.
NO
Repair an open or high resistance in the wire.
4. Determine possible failure area (MICU, others):
Under-dash fuse/relay box connector D (24P)
.png)
Is there battery voltage?
YES
Go to step 5.
NO
Faulty MICU; replace the under-dash fuse/relay box.
5. Keyless access control unit KEY SW line check:
Keyless access control unit connector A (32P)
ONE- PUSH START - KEYLESS ACCESS CONTROL UNIT - FUNCTIONAL TEST
.png)
Does the voltage change from about 12 to 0 V?
YES
Go to step 6.
NO
Replace the keyless access control unit.
6. Keyless access control unit SS1 (+) line check:
Keyless access control unit connector B (36P)
.png)
Is there about 0 V?
YES
Reconnect the connectors and recheck the system. If the symptom does not go away, replace the keyless access control unit.
NO
Go to step 7.
7. Open wire check (SS1 (+) line):
Engine start/stop switch 10P connector
Is the engine start/stop switch OK?
YES
Repair an open or high resistance in the wire.
NO
Replace the engine start/stop switch.
KEYLESS ACCESS SYSTEM SYMPTOM TROUBLESHOOTING INDEX
Troubleshooting Index
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
.png)
*1: With electric steering lock*2: CVT*3: M/T
KEYLESS ACCESS INDICATOR DOES NOT GO OFF OR DOES NOT COME ON
Refer to: Keyless Access System Symptom Troubleshooting - Immobilizer indicator does not go off or does not come on
Keyless/Power Door Locks/Security System Symptom Troubleshooting - Auto Door
Unlock Does Not Work
Keyless/Power Door Locks/Security System Symptom Troubleshooting - Doors
Automatically Relock 30 Seconds After Being Unlocked With The Keyless Remote
Even Though A Door Has Been Opened
Keyless/Power Door Locks/Security System Symptom Troubleshooting - Security
Alarm System Will Not Arm
DTC C1840-12 (47-01): Differential Fluid Pressure Sensor Circuit
High Voltage
(AWD)
CVT System Description - Clutches (CVT)