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Diagnostic Manual, Chassis and Drivetrain,
Volume 1

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LOCATION:    2.1 Electronic Automatic Transmission Control (ETC)   >   23 Electrical Test Program - Test


Electrical Test Program - Test

Test step DTC Test scope
Test connection
Test condition
Nominal value
Possible cause/Remedy
1.0   Voltage supply


1
N15/1




21


Igition: ON


11 - 14 V
Wiring,
Ground (component
compartment) (W16),
Overvoltage protection relay
module (K1/2).
2.01) Accelerator pedal signal





Reference voltage


8






8
N15/1





N15/1




3






12
Ignition: ON
Accelerator pedal in:
CTP
WOT
CTP



CTP
WOT
CTP



< 1 V
< 2 V
2 - 3 V



< 1 V
< 2 V
2 - 3 V
Wiring,
TB switch (S29/4),
TCM (N15/1).





Wiring,
2.1.
2.1   TB Switch (S29/4)

3


3
S29/4x2


S29/4x2


1


2

Ignition: OFF



Disconnect TB switch AP potentiometer connector (S29/4x2).

900 - 1600


2.0 - 3.8 k
S29/4
3.0   Transmission range


1
N15/1




17
Ignition: ON

Selector lever
in: P-R-N-D

4-3-2



> 10 V

< 1 V


Wiring,
3.2,

TCM (N15/1),
Overvoltage protection relay
module (K1/2).
3.1   Non - USA vehicles only






3.2   Transmission range

5
X22/5

4
Ignition: OFF
Disconnect 5-speed AT/engine connector (X22/5).

Selector lever
in: P-R-N-D

4-3-2







< 5


> 20 k

Wiring,
TR "D" contact switch (S16/9)
4.0   Non - USA vehicles only






5.0 Engine speed signal TN


1
N15/1




14


Engine: at Idle


6 V
Wiring,
5.1,
TCM (N15/1).
5.1   Control module


1
N15/1




14
Engine: at Idle
TCM (N15/1) disconnected.

6 V
DI control module (N1/3),
Engine systems (MAS) control
module (N16),
CFI control module (N3).
6.0 Vehicle speed signal (VSS)


1
N15/1




16
Drive vehicle at approximately 31 mph (50 km/h) on a dynamometer.
ABS/ASR control module (N30/1) disconnected.




6 V ~
Wiring,
Instrument cluster (A1), DM, B&A, Vol. 1, section 1.2 >23,
Combination relay (N10),
Hall-effect speed sensor (B6).
7.0   Digital load signal


1
N15/1




13
Engine: at Idle

Vacuum line on DI control module connected (CTP)

Vacuum line on DI control module disconnected (WOT)



approx. 0.8 V ~


> 2 V ~
Wiring,
TCM (N15/1),
DI control module (N1/3).
8.0   Kickdown switch (S16/6)
Activation


1
N15/1




20
Engine: at Idle

Depress kickdown switch by hand (behind pedal).
< 1 V

> 10 V
Wiring.
8.1,
TCM (N15/1),
Kickdown switch (S16/6).
8.1   Kickdown solenoid valve (Y3/1y1), internal resistance


1
N15/1



20
Ignition: OFF
TCM (N15/1) disconnected.
10 - 30 Wiring,
Valve block (Y3/1).
9.0

Valve block control
valve (Y3/1y2)
Activation in 4GR


Activation in 5GR



2
N15/1




22
Engine: at Idle

Engine speed > 1000 rpm


Drive vehicle on a dynamometer at approximately 50 mph
(80 km/h).
TR "D"
> 5 V ~








< 1 V ~
Wiring
9.1,
TCM (N15/1)




2.0,
5.0 - 7.0
9.1   Coil resistance


2
N15/1




22
Ignition: OFF
TCM (N15/1) disconnected.


2 - 10
(see control valve resistance table)
Valve block control valve (Y3/1y2)
1) The voltage should increase continually when bringing the accelerator pedal to WOT.