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05-1658
DIAGNOSTICS - POWER SLIDE DOOR SYSTEM
05BZ8-01
TERMINALS OF ECU
1. CHECK POWER SLIDE DOOR ECU LH
P26 P25
B68464
(a) Disconnect the P25 and P26 ECU connectors, and check the voltage and resistance of each terminal
of the wire harness side connectors.
Standard:
Terminal No. Wiring Color Condition Specified Condition
P26-2 (B) - Body ground B-W - Body ground Constant 10 to 14 V
P25-10 (ECUB) - Body ground W - Body ground Constant 10 to 14 V
P26-8 (GND) - Body ground W-B - Body ground Constant Below 1
Power slide door control switch LH
P25-4 (CSW) - Body ground L - Body ground
OFF ON 10 k or higher Below 1
Rear door inside/outside handle
P25-3 (HSW) - Body ground W-R - Body ground
NOT PULLED PULLED 10 k or higher Below 1
Child lock lever LH
P25-18 (CPSW) - Body ground P-B - Body ground
UNLOCK LOCK 10 k or higher Below 1
Fuel lid
P25-17 (FLSW) - Body ground R-W - Body ground
CLOSED OPEN 10 k or higher Below 1
Power slide door touch sensor LH
P25-16 (OS) - P25-15 (OSG) W-L - W-G
FREE PRESSED Approx. 1 k Less than 100
P25-22 (MPX1) - Body ground R - Body ground BEAN line 10 k or higher
If the result is not as specified, there may be a malfunction on the wire harness side.
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1841
05-1659
DIAGNOSTICS - POWER SLIDE DOOR SYSTEM
(b) Reconnect the ECU connectors, and check the voltage of each terminal of the connectors.
Standard:
Terminal No. Wiring Color Condition Specified Condition
P25-6 (MSW) - P -
Power slide door main switch OFF ON 0 V Pulse generation
Body ground Body ground
Slide door fully closed and A*1, B*2 or C*3 switch turned ON 0V
P26-5 (RACT) - B -
Slide door in opening operation 10 to 14 V
Body ground Body ground
Slide door fully open 0V
P25-2 (BZR+) - B-R -
Body ground Body ground All conditions necessary for warning buzzer to sound*4 are met
sound 10 to 14 V (a cycle of approx. 0.3 sec.)
a rox.
P25-1 (BZR-) - R-Y - Any condition necessary for sounding warning buzzer to stop*5 is met 0V
Body ground Body ground
P25-13 (SEL*6) - W-B -
Constant 0V
Body ground Body ground
P25-26 (DSV) -
W-G - Y-B Constant 10 to 14 V
P25-23 (DSG)
P25-25 (DS1) -
P25-23 (DSG)
R-G - Y-B Slide door fully closed and A, B or C switch turned ON 0V
Slide door in opening operation Alternating between 10 to 14 V and 0 V
Alt ti b t t d
P25-24 (DS2) -
G-W - Y-B Slide door fully open 0V
P25-23 (DSG)
Slide door fully open and A, B or C switch turned ON 0V
P26-7 (CL+) - V-W -
Slide door in closing operation 10 to 14 V
Body ground Body ground
Slide door fully closed 0V
Slide door fully closed and A, B or C switch turned ON 0V
P26-6 (CL-) - B-Y -
Slide door in opening operation 10 to 14 V
Body ground Body ground
Slide door fully open 0V
Slide door fully closed and A, B or C switch turned ON 0V
P26-1 (SD+) - G- Slide door in opening operation 10 to 14 V
Body ground Body ground Slowdown point Alternating between 10 to 14 V and 0 V
Slide door fully open 0V
Slide door fully open and A, B or C switch turned ON 0V
P26-3 (SD-) - Y - Slide door in closing operation 10 to 14 V
Body ground Body ground Slowdown point Alternating between 10 to 14 V and 0 V
Slide door fully closed 0V
*1 Satellite switch (Slide door LH)
*2 Power slide door control switch LH
*3 Transmitter switch (Slide door LH)
*4 When all the conditions listed below are met, the warning buzzer sounds.
S Ignition switch is turned ON
S Shift lever is moved into any position except P position
S Slide door is open or power slide door system is activated to open
* 5 When any condition listed below is met, the sounding warning buzzer stops.
S Shift lever is moved into P position
S Slide door is fully closed
* 6 Terminal SEL is used for distinction between the power slide door ECU LH and RH. Only terminal SEL
of the power slide door ECU LH is grounded.
HINT:
Use an oscilloscope to check the output voltages of the power slide door main switch, buzzer and pulse sen-
sor.
If the result is not as specified, the ECU may have a malfunction.
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1842
05-1660
DIAGNOSTICS - POWER SLIDE DOOR SYSTEM
2. CHECK POWER SLIDE DOOR ECU RH
P28 P27
B68464
(a) Disconnect the P27 and P28 ECU connectors, and check the voltage or resistance of each terminal
of the wire harness side connectors.
Standard:
Terminal No. Wiring Color Condition Specified Condition
P28-2 (B) - Body ground B - Body ground Constant 10 to 14 V
P27-10 (ECUB) - Body ground W - Body ground Constant 10 to 14 V
P28-8 (GND) - Body ground W-B - Body ground Constant Below 1
Power slide door control switch RH
P27-4 (CSW) - Body ground L - Body ground
OFF ON 10 k or higher Below 1
Rear door Inside/outside handle
P27-3 (HSW) - Body ground W-R - Body ground
NOT PULLED PULLED 10 k or higher Below 1
Child lock lever RH
P27-18 (CPSW) - Body ground P-B - Body ground
UNLOCK LOCK 10 k or higher Below 1
Power slide door touch sensor RH
P27-16 (OS) - P27-15 (OSG) W-L - W-G
FREE PRESSED Approx. 1 k Less than 100
P27-22 (MPX1) - Body ground R - Body ground BEAN line 10 k or higher
If the result is not as specified, there may be a malfunction on the wire harness side.
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1843
05-1661
DIAGNOSTICS - POWER SLIDE DOOR SYSTEM
(b) Reconnect the ECU connectors, and check the voltage of each terminal of the connectors.
Standard:
Terminal No. Wiring Color Condition Specified Condition
P27-6 (MSW) - P -
Body ground Body ground
Power slide door main switch OFF ON 0 V Pulse generation
P27-5 (MSE) - R-W -
Body ground Body ground
Slide door fully closed and A*1, B*2 or C*3 switch turned ON 0V
P28-5 (RACT) - B -
Slide door in opening operation 10 to 14 V
Body ground Body ground
Slide door fully open 0V
P27-2 (BZR+) - B-R -
Body ground Body ground All conditions necessary for warning buzzer to sound*4 are met
sound 10 to 14 V (a cycle of approx. 0.3 sec.)
a rox.
P27-1 (BZR-) - R-Y - Any condition necessary for sounding warning buzzer to stop*5 is met 0V
Body ground Body ground
P27-26 (DSV) -
W-G - Y-B Constant 10 to 14 V
P27-23 (DSG)
P27-25 (DS1) -
P27-23 (DSG)
R-G - Y-B Slide door fully closed and A, B or C switch turned ON 0V
Slide door in opening operation Alternating between10 to 14 V and 0 V
Alt ti b t 10 t d
P27-24 (DS2) -
G-W - Y-B Slide door fully open 0V
P27-23 (DSG)
Slide door fully open and A, B or C switch turned ON 0V
P28-7 (CL+) - V-W -
Slide door in closing operation 10 to 14 V
Body ground Body ground
Slide door fully closed 0V
Slide door fully closed and A, B or C switch turned ON 0V
P28-6 (CL-) - B-Y -
Slide door in opening operation 10 to 14 V
Body ground Body ground
Slide door fully open 0V
Slide door fully closed and A, B or C switch turned ON 0V
P28-1 (SD+) - G- Slide door in opening operation 10 to 14 V
Body ground Body ground Slowdown point Alternating between 10 to 14 V and 0 V
Slide door fully open 0V
Slide door fully open and A, B or C switch turned ON 0V
P28-3 (SD-) - Y - Slide door in closing operation 10 to 14 V
Body ground Body ground Slowdown point Alternating between 10 to 14 V and 0 V
Slide door fully closed 0V
*1 Satellite switch (Slide door RH)
*2 Power slide door control switch RH
*3 Transmitter switch (Slide door RH)
*4 When all the conditions listed below are met, the warning buzzer sounds.
S Ignition switch is turned ON
S Shift lever is moved into any position except P position
S Slide door is open or power slide door system is activated to open
* 5 When any condition listed below is met, the sounding warning buzzer stops.
S Shift lever is moved into P position
S Slide door is fully closed
HINT:
Use an oscilloscope to check the output voltages of the power slide door main switch, buzzer and pulse sen-
sor.
If the result is not as specified, the ECU may have a malfunction.
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1844
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