ECM Inputs and Outputs at Connector C (○) (49P)
NOTE: Standard battery voltage is about 12 V.
Terminal number
Wire color
Terminal name
Description
Signal
29
RED
AFS+ (AIR FUEL RATIO (A/F) SENSOR (SENSOR 1) +SIDE)
Detects A/F sensor (sensor 1) signal
At idle: about 2.2 V
30
RED/YEL
AFS− (AIR FUEL RATIO (A/F) SENSOR (SENSOR 1) −SIDE)
Detects A/F sensor (sensor 1) signal
At idle: about 1.8 V
31
GRN
CMP (CAMSHAFT POSITION (CMP) SENSOR)
Detects CMP sensor signal
With engine running: pulses
32
BLU
CKP (CRANKSHAFT POSITION (CKP) SENSOR)
Detects CKP sensor signal
With engine running: pulses
41
ORN
OILLVL (ENGINE OIL LEVEL SENSOR SIGNAL)
Detects engine oil level sensor signal
With ignition switch ON (II): pulses
43
GRN
SG3 (SENSOR GROUND)
Sensor ground
Less than 0.5 V at all times
44
BRN/YEL
LG1 (LOGIC GROUND)
Ground circuit for ECM circuit
Less than 0.5 V at all times
46
RED/BLU
KS (KNOCK SENSOR)
Detects knock sensor signal
With engine knocking: pulses
48
BRN/YEL
LG2 (LOGIC GROUND)
Ground circuit for ECM circuit
Less than 0.5 V at all times