Test readings, control module connections: Scope

The following pages contain readings and directions for measuring signals and levels on the Trionic control module.

Fig 1: Measuring Signals And Levels On Trionic Control Module

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Fig 2: Identifying Test Readings, Control Module Connections

Courtesy of SAAB-SCANIA OF AMERICA, INC.

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 3: Identifying Connector Terminal

  Courtesy of SAAB-SCANIA OF AMERICA, INC.

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

  CONNECTOR CHART
  
  

  Pin	Cable color	Component/function	In/Out	Test conditions	Across	Test reading
  1	GN/BK	Main relay, 87	In		B+ to 1	< 0.5 V
  2	BN/BU	Oxygen sensor 2, pre-heating	Out	Idling Coolant temperature above 50°C	2-25	approx. 0.3 V
  3		Not connected
  4	BU/WH	Relay. A/C compressor	Out	Idling A/C on	4-25	< 0.5 V
  5	OG	Cruise control B	In	Position ON/OFF	5-25	0 V B+
  6	RD/WH	Combustion cyl. 3+4	In	Idling	6-25	15-90 Hz (LP LO HIp)
  7	RD/BU	Trigger 1	Out	Idling	7-25	7 Hz 14 ms (-) (LP HI LOp)
  8	VT/WH	Trigger 4	Out	Idling	8-25	7 Hz 14 ms (-) (LP HI LOp)
  9	BK/RD	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	BU/BN	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 2.0V~
  18	BK	Crankshaft position sensor	In	Idling Starter motor cranking	17-18	5-10 V~ approx. 800 Hz LP HI LO 2.0V~
  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	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	Idling, warm engine and valve active	27-25	16 Hz (LP HI LOp)
  28		Not connected
  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		Not connected
  32		Not connected
  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	Idling, 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 (certain markets only)	Out	Activate ON	37-25	B+ < 0.5 V
  38	OG/WH	Knock signal	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		Not connected
  42		Not connected
  43	BU/RD	+15	In	Ignition OFF	43-25	B+ < 0.5 V
  44	BK/WH	Injector 2	Out	Idling	44-25	7 Hz 2.5-4.5 ms (-) (LP HI LOp)
  45	BU/GN	Injector 1	Out	Idling	45-25	7 Hz 2.5-4.5 ms (-) (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 1, preheating	Out	Idling	49-25	approx. 0.3 V
  50	GN	Fuel pump relay	Out	Starter motor cranking	50-25	B+ < 0.5 V
  51	BU/WH	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	OG	Combustion cyl. 1+2	In	Idling	53-25	15-90 Hz (LP LO HIp)
  54	BU/RD	Trigger 2	Out	Idling	54-25	7 Hz 14 ms (-) (LP HI LOp)
  55	YE/BU	Trigger 3	Out	Idling	55-25	7 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	EVAP tank pressure valve (certain markets only)	In	Filler cap released and fuel level below sensor	59-22	2.5 V
  60		Not connected
  61		Not connected
  62	BK	Not connected			62-B-	< 0.1 V
  63	GN/GY	Brake lights (not cars with TC/ABS)	In	Brake pedal depressed	63-25	0 V B+
  64	GY/RD	Vehicle speed (not cars with TC/ABS)	In	Rotate front left wheel 1/2 rps	64-25	15 Hz 50 % (LP HIp LOp)
  65	PK/WH	Mass air flow sensor	In	Idling, 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	Idling	67-25	7 Hz 2.5-4.5 ms (-) (LP HI LOp)
  68	GN/GY	Injector 4	Out	Idling	68-25	7 Hz 2.5-4.5 ms (-) (LP HI LOp)
  69	GY/RD	5 V	Out		69-22	5 V
  70	GN/RD	Sensor ground	Out		70-25	< 0.1 V