DESCRIPTION
If the front passenger door entry unlock function operates normally, but its entry lock function does not, this means that the request code from the front passenger door is being output normally. In this case, a malfunction in the lock sensor circuit (from the certification ECU (smart key ECU assembly) to the front door outside handle assembly (lock sensor)) is suspected.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK POWER DOOR LOCK OPERATION |
(a) When the door control switch on the master switch assembly is operated, check
that the doors unlock and lock according to switch operation (See page
).
OK:
Door locks operate normally.
NG | ![]() |
GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Problem Symptoms Table) |
|
2. |
READ VALUE USING TECHSTREAM (DOOR LOCK POSITION SWITCH) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Data List.
(e) Read the Data List according to the display on the Techstream.
Main Body (Main Body ECU (Driver Side junction Block Assembly))
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
P-Door Lock Pos SW |
Front passenger side door lock position switch signal/ON or OFF |
ON: Front passenger side door is unlocked OFF: Front passenger side door is locked |
- |
OK:
On the Techstream screen, the display changes between ON and OFF as shown in the chart above.
NG | ![]() |
GO TO LIGHTING SYSTEM (Proceed to Door Unlock Detection Switch Circuit) |
|
3. |
READ VALUE USING TECHSTREAM (DOOR OUTSIDE HANDLE) |
(a) Enter the following menus: Body Electrical / Smart Key / Data List.
(b) Read the Data List according to the display on the Techstream.
Smart Key (Certification ECU (Smart Key ECU Assembly))
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
P-Door Trigger SW |
Front passenger side door lock switch / ON or OFF |
ON: Entry lock switch pressed OFF: Entry lock switch not pressed |
- |
OK:
On the Techstream screen, the display changes between ON and OFF as shown in the chart above.
OK | ![]() |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
|
4. |
CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE - CERTIFICATION ECU) |
(a) Disconnect the certification ECU (smart key ECU assembly) connector.
(b) Disconnect the front door outside handle assembly (for front passenger side) connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D25-19 (TSW2) - z4-1 (TRG+) |
Always |
Below 1 Ω |
D25-19 (TSW2) - Body ground |
Always |
10 kΩ or higher |
z4-1 (TRG+) - Body ground |
Always |
10 kΩ or higher |
*1 |
Front view of wire harness connector (to Certification ECU (Smart Key ECU Assembly)) |
*2 |
Front view of wire harness connector (to Front Door Outside Handle Assembly (for Front Passenger Side)) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (LOCK SENSOR SIGNAL INPUT) |
(a) Reconnect the certification ECU (smart key ECU assembly) connector.
(b) Reconnect the front door outside handle assembly (for front passenger side) connector.
(c) Measure the voltage and check for pulses according to the value(s) in the table below.
Standard:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D25-19 (TSW2) - D25-15 (E) |
|
Pulse generation |
D25-19 (TSW2) - D25-15 (E) |
|
Below 2 V |
*1 |
Component with harness connected (Certification ECU (Smart Key ECU Assembly)) |
OK | ![]() |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
NG | ![]() |
REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (for Front Passenger Side) |
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Meter / Gauge System
DTC Code
Detection Item
Trouble Area
See page
B1500
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Air Mix Damper Control Servo Motor Circuit (Passenger Side) (B1441/41)
DESCRIPTION
The air mix control servo motor sends pulse signals to indicate the damper position
to the A/C amplifier. The A/C amplifier activates the motor (normal or reverse)
based on these signals to move the air mix damper (front passenger side) to any ...
Disposal
DISPOSAL
CAUTION / NOTICE / HINT
CAUTION:
Before performing pre-disposal deployment of any SRS component, review and closely
follow all applicable environmental and hazardous material regulations. Pre-disposal
deployment may be considered hazardous mate ...