Test readings, control module connections
| Test readings, control module connections |
| Scope |
The following pages contain readings and directions for measuring signals and levels on the Trionic control module.
| Remember |
| • |
Note the test readings, use common sense when assessing the results of the tests.
|
|
| • |
The specified values are with the ignition in the ON position unless otherwise stated.
|
|
| • |
First, make sure the control module is supplied with power and grounded.
|
|
| • |
Then, check all the sensor inputs and signals from other systems.
|
|
| • |
Finally, check the control module outputs. Remember that the test readings do not indicate whether the actuator is working.
|
|
| • |
If any of the test readings is incorrect, use the wiring diagram to determine which lead, connector or component should be checked further.
|
|
| • |
The specified test values apply for a Fluke 88/97.
|
|
| • |
The test readings % (+) and ms (+) signify the pulse ratio and pulse length of the signal respectively. A test instrument capable of measuring pulse ratio and pulse width must be used. The sign indicates a positive trigger pulse, TRIG+.
|
|
>= greater than; <= less than; » = approximately equal to; ∼= alternating current
Pins without comments have no pin connection. (LP: LOGIC PROBE P = select pulse; p = perceptible pulses)
| Pin | Cable colour | Component/function | In/Out | Test conditions | Across | Test reading | See |
|
1
|
GN/BK
|
Main relay
|
In
|
|
B+ to 1
|
<0.5 V
|
|
|
2
|
BN/BU
|
Oxygen sensor 2, pre-heating
|
Out
|
Idling Coolant temperature above 50°C
|
2-25
|
»
0.3 V
|
|
|
3
|
Not connected
|
||||||
|
4
|
BU/WH
|
Relay, A/C compressor
|
Out
|
700 rpm
A/C ON |
4-25
|
<0.5 V
|
|
|
5
|
OG
|
Cruise control B
|
In
|
Position ON/OFF |
5-25
|
0 V
B+ |
|
|
6
|
GN/RD
|
Combustion, Bank 2
|
In
|
700 rpm
|
6-25
|
15-90 Hz
(LP LO HIp) |
|
|
7
|
BU/RD
|
Trigger 1
|
Out
|
700 rpm
|
7-25
|
6 Hz
14 ms (-) (LP HI LOp) |
|
|
8
|
BU/GN
|
Trigger 4
|
Out
|
700 rpm
|
8-25
|
6 Hz
14 ms (-) (LP HI LOp) |
|
|
9
|
GN/YE
|
Pedal position sensor 2
|
In
|
Pedal released
Pedal fully depressed |
Use diagnostic tool
|
0.355-1.010 V
3.945-4.600 V |
|
|
10
|
YE
|
Throttle position sensor 2
|
In
|
Throttle closed
Throttle fully open |
10-70
|
3.910-4.935 V
0.025-1.070 V |
|
|
11
|
BN/OG
|
Manifold absolute pressure sensor
|
In
|
|
11-22
|
2.1 V at 100 kPa
|
|
|
12
|
Not connected
|
||||||
|
13
|
Not connected
|
||||||
|
14
|
GN/RD
|
Pedal position (TC/ABS)
|
Out
|
|
14-25
|
8 Hz
|
|
|
15
|
WH/BK
|
Intake air temperature
|
In
|
|
15-22
|
Approx. 2.4 V at 20°C
|
|
|
16
|
Not connected
|
||||||
|
17
|
YE
|
Crankshaft position sensor
|
In
|
700 rpm
Starter motor cranking |
17-18
|
5-15 V∼
» 680 Hz LP HI LO >2.0 V∼ |
|
|
18
|
BK
|
Crankshaft position sensor
|
In
|
700 rpm
Starter motor cranking |
17-18
|
5-10 V∼
» 680 Hz LP HI LO >2.0 V∼ |
|
|
19
|
WH
|
P bus -
|
In/Out
|
|
19-25
|
2-3 V
(LP PHI LO) |
|
|
20
|
BK/RD
|
Injector 6
|
Out
|
700 rpm
|
20-25
|
6 Hz
(LP HI LOp) |
|
|
21
|
PK/WH
|
Injector 5
|
Out
|
700 rpm
|
21-25
|
6 Hz
(LP HI LOp) |
|
|
22
|
BK
|
Sensor ground
|
Out
|
|
22-25
|
< 0.1 V
|
|
|
23
|
RD
|
+30
|
In
|
|
B+ to 23
|
< 0.5
|
|
|
24
|
BU/RD
|
Throttle motor -
|
Out
|
|
48-24
|
600 Hz
LP HI LO |
|
|
25
|
BK
|
Power ground
|
In
|
|
25- B-
|
<0.1 V
|
|
|
26
|
BU
|
Main relay
|
Out
|
10 s after ignition OFF |
26-25
|
<0.5 V
B+ |
|
|
27
|
BN/RD
|
EVAP canister purge valve
|
Out
|
700 rpm, warm engine and valve active
|
27-25
|
16 Hz
(LP HI LOp) |
|
|
28
|
BN
|
Engine speed (TC/ABS)
|
Out
|
700 rpm
|
28-25
|
25 Hz
|
|
|
29
|
GN/RD
|
Pedal switch, brake/clutch
|
In
|
Automatic position D
Brake or clutch pedal depressed |
29-25
|
B+
0 V |
|
|
30
|
VT
|
Cruise control C
|
In
|
Position ON/OFF |
30-25
|
0 V
B+ |
|
|
31
|
RD/WH
|
Trigger 5
|
Out
|
700 rpm
|
31-25
|
6 Hz
14 ms (-) (LP HI LOp) |
|
|
32
|
BU/YE
|
Trigger 6
|
Out
|
700 rpm
|
32-25
|
6 Hz
14 ms (-) (LP HI LOp) |
|
|
33
|
GY/RD
|
Throttle position sensor 1
|
In
|
Throttle closed
Throttle fully open |
33-70
|
0.065-1.090 V
3.930-4.775 V |
|
|
34
|
RD
|
Oxygen sensor 1
|
In
|
700 rpm, warm engine, closed loop active
|
34-58
|
0-1 V
|
|
|
35
|
YE/RD
|
Charge air absolute pressure sensor
|
In
|
|
35-70
|
2.1 V (100 kPa)
|
|
|
36
|
WH
|
Relay, limp-home solenoid
|
Out
|
|
36-25
|
B+
|
|
|
37
|
BN/WH
|
EVAP shut-off valve
|
Out
|
Activate ON |
37-25
|
B+
<0.5 V |
|
|
38
|
OG/WH
|
Knock signal, Bank 1
|
In
|
|
38-25
|
2.5 V
|
|
|
39
|
WH/GN
|
Temperature sensor, engine coolant
|
In
|
|
39-22
|
1.0 V (90°C)
|
|
|
40
|
Not connected
|
||||||
|
41
|
GY
|
Max. permitted engine torque (TC/ABS)
|
In
|
41-25
|
100 Hz
|
|
|
|
42
|
Not connected
|
||||||
|
43
|
BU/RD
|
+15
|
In
|
Ignition OFF |
43-25
|
B+
< 0.5 V |
|
|
44
|
BK/WH
|
Injector 2
|
Out
|
700 rpm
|
44-25
|
6 Hz
(LP HI LOp) |
|
|
45
|
BU/GN
|
Injector 1
|
Out
|
700 rpm
|
45-25
|
6 Hz
(LP HI LOp) |
|
|
46
|
WH/BK
|
5 V
|
Out
|
|
46-70
|
5 V
|
|
|
47
|
BK
|
Power ground
|
In
|
|
47-B-
|
<0.1 V
|
|
|
48
|
GY/RD
|
Throttle motor +
|
Out
|
|
48-24
|
600 Hz
LP HI LO |
|
|
49
|
VT/WH
|
Oxygen sensor, pre-heating
|
Out
|
700 rpm
|
49-25
|
»
0.3 V
|
|
|
50
|
GN
|
Fuel pump relay
|
Out
|
Starter motor cranking |
50-25
|
B+
<0.5 V |
|
|
51
|
BU
|
Control valve, bypass
|
Out
|
Rev up engine and release accelerator pedal
Acceleration under load |
51-25
|
B+
<0.5 V |
|
|
52
|
WH
|
Cruise control A
|
In
|
Position ON/OFF |
52-25
|
0 V
B+ |
|
|
53
|
YE/BU
|
Combustion, Bank 1
|
In
|
700 rpm
|
53-25
|
15-90 Hz
(LP LO HIp) |
|
|
54
|
YE/BK
|
Trigger 2
|
Out
|
700 rpm
|
54-25
|
6 Hz
14 ms (-) (LP HI LOp) |
|
|
55
|
RD/BU
|
Trigger 3
|
Out
|
700 rpm
|
55-25
|
6 Hz
14 ms (-) (LP HI LOp) |
|
|
56
|
WH/GN
|
Pedal position sensor 1
|
In
|
Pedal released
Pedal fully depressed |
56-70
|
3.990-4.645 V
0.400-1.055 V |
|
|
57
|
GN
|
Oxygen sensor 2
|
In
|
Idling, warm engine, closed loop active
|
57-58
|
0-1 V
|
|
|
58
|
BK
|
Reference ground, oxygen sensor
|
In
|
|
58-25
|
<0.1 V
|
|
|
59
|
OG/WH
|
Tank pressure sensor, EVAP
|
In
|
Filler cap released and fuel level below sensor
|
59-22
|
2.5 V
|
|
|
61
|
GY/RD
|
Engine torque (TC/ABS)
|
Out
|
61-25
|
100 Hz
|
|
|
|
62
|
GN/BK
|
Knock signal, Bank 2
|
In
|
|
62-25
|
2.5 V
|
|
|
63
|
GN/GY
|
Brake lights
|
In
|
Brake pedal depressed
|
63-25
|
0 V
B+ |
|
|
64
|
GY/RD
|
Vehicle speed
|
In
|
Rotate right front wheel 1/2 rev/s
|
64-25
|
15 Hz
50 % (LP HIp LOp) |
|
|
65
|
PK/WH
|
Mass air flow sensor
|
In
|
700 rpm
Engine warm A/C OFF electric consumers turned off |
65-25
|
Approx. 2.1 kHz
|
|
|
66
|
GN
|
P bus +
|
In/Out
|
|
66-25
|
2-3 V
(LP PHI LO) |
|
|
67
|
RD/YE
|
Injector 3
|
Out
|
700 rpm
|
67-25
|
6 Hz
(LP HI LOp) |
|
|
68
|
GN/GY
|
Injector 4
|
Out
|
700 rpm
|
68-25
|
6 Hz
(LP HI LOp) |
|
|
69
|
GY/RD
|
5 V
|
Out
|
|
69-22
|
5 V
|
|
|
70
|
GN/RD
|
Sensor ground
|
Out
|
|
70-25
|
<0.1 V
|
|
This project is supported by memberships and donations. If you use this site, please consider Joining SCNA and/or making a donation.
Our Friends
