Fuel and Emissions Systems

System Descriptions (cont'd)

 11-18  

ECM Inputs and Outputs at Connector B (40P)

Wire side of female terminals

Terminal

No.

 Wire Colour Terminal Name Description Signal Condition
84 WHT Engine coolant temperature (ECT) sensor signal Detects ECT sensor signal About 0.1 V – 4.8 V with the ignition switch ON (II) (depending on ECT)
85 GRY Engine coolant temperature (ECT) sensor ground Ground for the ECT sensor 0 V at all times
86 YEL Rail pressure (RP) sensor signal Detects RP sensor signal About 1 V with the engine running at idle (depending on RP)
88 BLK Mass air flow (MAF) sensor ground Ground for the MAF sensor 0 V at all times
89 BRN Mass air flow (MAF) sensor signal Detects MAF sensor signal About 2 V – 3 V with the engine running at idle
90 RED/YEL Rail pressure (RP) sensor supply Provides RP sensor About 5 V with the ignition switch ON (II)

About 0 V with the ignition switch OFF
91 YEL/RED Intake air temperature (IAT) sensor signal Detects IAT sensor signal About 0.1 V – 4.8 V with the ignition switch ON (II) (depending on IAT)
92 BLK/RED Rail pressure (RP) sensor ground Ground for the RP sensor 0 V at all times
93 RED/BLU Manifold absolute pressure (MAP) sensor supply Provides MAP sensor About 5 V with the ignition switch ON (II)
94 YEL/RED Manifold absolute pressure (MAP) sensor signal Detects MAP sensor signal About 2 V with the ignition switch ON (II)

About 2 V with the engine running at idle
95 BLK/YEL Manifold absolute pressure (MAP) sensor ground Ground for the MAP sensor 0 V at all times
97 WHT/RED Mass air flow (MAF) sensor supply Provides MAF sensor About 5 V with the ignition switch ON (II)
99 WHT/BLU Crank position (CKP) sensor plus signal Detects CKP sensor plus signal Pulses signal with the engine running
100 ORN/BLU Crank position (CKP) sensor minus signal Detects CKP sensor minus signal Pulses signal with the engine running

NOTICE

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