2003 Saab 9-3 Vector, AutomaticFACTORY OEM SERVICE PROCEDURE

Test readings, control module connections: 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+.
    Fig 1: Identifying Terminals Of Trionic Control Module
    G03576851Courtesy of SAAB-SCANIA OF AMERICA, INC.

= greater than; < = less than; ~= alternating current

Pins without further comments have no connection. (LP: LOGIC PROBE P = select pulse; p = visible pulses).

TRIONIC CONTROL MODULE - TERMINALS SPECIFICATION

Pin Cable color Component/function In/Out Test conditions Across Test reading
1 RD/WH Main relay, 87 In   B+ to 1 < 0.5 V
2 YE Oxygen sensor 2, pre-heating Out Idling Coolant temperature above 50C 2--25 approx. 0.3 V
3   Not connected       v
4 RD/WH Relay. A/C compressor Out Idling
A/C on		 4--25 < 0.5 V
5 GY/GN Cruise control B In Position ON/OFF 5-25 0 V B+
6 BN/RD Combustion cyl. 3+4 In Idling 6--25 15-90 Hz
(LP LO HIp)
7 OG/BK Trigger 1 Out Idling 7--25 7 Hz
14 ms (-)
(LP HI LOp)
8 GY/RD Trigger 4 Out Idling 8--25 7 Hz
14 ms (-)
(LP HI LOp)
9 YE/BU Pedal position sensor 2 In Pedal released
Pedal fully depressed		 Use diagnostic tool 0.355 - 1.010 V
3.945-4.600 V
10 BU/BN Throttle position sensor 2 In Throttle closed
Throttle fully open		 10--70 3.910- 4.935 V
0.025-1.070 V
11 BY/YE MANIFOLD ABSOLUTE PRESSURE SENSOR  In   11--22 2.1 V at 100 kPa
12   Not connected     v v
13 BU Charge air control valve Out   13--25 32 Hz
2 % (-)
0.5 ms (-)
(LP HI LOp)
14   Not connected        
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 Idling
Starter motor cranking		 17--18 5-15 V~
approx. 800 Hz
LP HI LO
2.0 V~
18 BK CRANKSHAFT POSITION SENSOR . In Idling
Starter motor cranking		 17--18 5-10 V~
approx. 800 Hz
LP HI LO
2.0 V~
19 WH P-bus - In/Out   19--25 2-3 V (LP PHI LO)
20   Not connected        
21   Not connected        
22 BK Sensor ground Out   22--25 < 0.1 V
23 PK/WH +30 In   B+ to 23 < 0.5
24 OG/GN Throttle motor - Out   48-24 600 Hz LP HI LO
25 BK Power ground In   25- B- < 0.1 V
26 BU/GY Main relay Out 10 s after ignition off 26-25 < 0.5 V B+
27 YE/GY EVAP canister purge valve Out Idling, warm engine and valve active 27-25 16 Hz (LP HI LOp)
28   Not connected        
29 YE/GN Pedal switch, brake/clutch In Automatic position D
Brake or clutch pedal depressed		 29-25 B+
0 V
30 GY Cruise control C In Position ON/OFF 30-25 0 V
B+
31   Not connected        
32   Not connected        
33 GN/WH Throttle position sensor 1 In Throttle closed
Throttle fully open		 33--70 0.065-1.090 V
3.930-4.775 V
34 GN Oxygen sensor 1 In Idling, warm engine, closed loop active 34--58 0-1 V
35 BU/WH Charge air absolute pressure sensor In   35--70 2.1 V (100 kPa)
36 BU/GN Relay, limp-home solenoid Out   36-25 B+
37 GN EVAP close valve . Out Activate ON 37-25 B+ < 0.5 V
38 OG Knock signal In   38-25 2.5 V
39 YE/WH TEMPERATURE SENSOR, ENGINE COOLANT . In   39-22 1.0 V (90C)
40   Not connected        
41   Not connected        
42   Not connected        
43 YE/GY +15 In Ignition OFF 43-25 B+
< 0.5 V
44 GN/WH Injector 2 Out Idling 44-25 7 Hz
2.5-4.5 ms (-)
(LP HI LOp)
45 GN/BK Injector 1 Out Idling 45-25 7 Hz
2.5-4.5 ms (-)
(LP HI LOp)
46 GY 5 V Out   46--70 5 V
47 BK Power ground In   47-B- < 0.1 V
48 RD/BU Throttle motor + Out   48-24 600 Hz
LP HI LO
49 BK/WH Oxygen sensor 1, pre-heating Out Idling 49-25 approx. 0.3 V
50 WH Fuel pump relay Out Starter motor cranking 50-25 B+
< 0.5 V
51 GN/BU CONTROL VALVE, BYPASS . Out Rev up engine and release accelerator pedal
Acceleration under load		 51-25 B+
< 0.5 V
52 GN Cruise control A In Position ON/OFF 52-25 0 V
B+
53 YE/BN Combustion cyl. 1+2 In Idling 53-25 15-90 Hz
(LP LO HIp)
54 GN/YE Trigger 2 Out Idling 54-25 7 Hz
14 ms (-)
(LP HI LOp)
55 BU/RD Trigger 3 Out Idling 55-25 7 Hz
14 ms (-)
(LP HI LOp)
56 YE/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 GY Reference ground, oxygen sensor In   58-25 < 0.1 V
59 BU Tank pressure sensor, EVAP In Filler cap released and fuel level below sensor 59-22 2.5 V
60   Not connected        
61   Not connected        
62 BK Power ground     62-B- < 0.1 V
63 VT Brake lights In Brake pedal depressed 63-25 0 V
B+
64 PK/BK Vehicle speed In Rotate front left wheel 1/2 rps 64-25 15 Hz
50 %
(LP HIp LOp)
65 GY/BU Mass air flow sensor In Idling, Engine warm, A/C off, electric consumers turned off 65-25 Approx. 2.1 kHz
66 WH P-bus + In/Out   66-25 2-3 V
(LP PHI LO)
67 VT/WH Injector 3 Out Idling 67-25 7 Hz
2.5-4.5 ms ( -)
(LP HI LOp)
68 GY/WH Injector 4 Out Idling 68-25 7 Hz
2.5-4.5 ms (-)
(LP HI LOp)
69 WH/BK 5 V Out   69-22 5 V
70 BK Sensor ground Out   70-25 < 0.1 V
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  • • You smell fuel, burning insulation, or see smoke.
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