Index Subaru Subaru Impreza 3 / Impreza WRX / Impreza WRX STI - service repair manual 2008-2014 year
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EN(H4DOTC)(diag)-24 Engine Control Module (ECM) I/O Signal ENGINE (DIAGNOSTICS) Ignition switch B136 30 10 — 13 12 — 14 — Neutral position switch B136 35 ON: 0 OFF: 10 — 13 ON: 0 OFF: 12 — 14 — Delivery (test) mode B136 34 10 — 13 13 — 14 When connected: 0 Knock sen- Signal B137 2 2.45 — 2.55 2.45 — 2.55 — Shield B137 8 0 0 — Back-up power supply B136 2 10 — 13 12 — 14 Ignition switch “OFF”: 10 — 13 Control module power B136 1 10 — 13 12 — 14 — B137 7 10 — 13 12 — 14 — Sensor power supply B134 19 5 5 — Ignition #1 B134 21 0 0 or 5 Waveform #2 B134 22 0 0 or 5 Waveform #3 B134 31 0 0 or 5 Waveform #4 B134 32 0 0 or 5 Waveform Fuel injec- #1 B134 10 10 — 13 1 — 14 Waveform #2 B134 11 10 — 13 1 — 14 Waveform #3 B134 12 10 — 13 1 — 14 Waveform #4 B134 13 10 — 13 1 — 14 Waveform Fuel pump Control B136 33 0 or 5 0 or 5 Waveform Diagnos- B135 10 10 — 13 12 — 14 — A/C relay control B135 35 ON: 0.5 or less OFF: 10 — 13 ON: 0.5 or less OFF: 12 — 14 — Main fan relay control B135 12 ON: 0.5 or less OFF: 10 — 13 ON: 0.5 or less OFF: 12 — 14 — Sub fan relay control B135 11 ON: 0.5 or less OFF: 10 — 13 ON: 0.5 or less OFF: 12 — 14 — Engine speed output B135 15 — 0 — 13 or more Waveform Purge control solenoid B137 6 ON: 1 or less OFF: 10 — 13 ON: 1 or less OFF: 12 — 14 Waveform Purge control solenoid B137 15 ON: 1 or less OFF: 10 — 13 ON: 1 or less OFF: 12 — 14 Waveform Manifold Signal B137 20 1.7 — 2.4 1.1 — 1.6 — Power B134 19 5 5 Ground B134 29 0 0 Power steering oil pres- B137 28 10 — 13 ON: 0 OFF: 12 — 14 — SSM/GST communica- B135 14 1 or less ←→ 4 or more 1 or less ←→ 4 or more — Intake camshaft posi- B137 16 0 or 5 0 or 5 Waveform Intake camshaft posi- B137 24 0 or 5 0 or 5 Waveform Exhaust camshaft posi- B137 29 0 or 5 0 or 5 Models with SI-DRIVE Waveform Exhaust camshaft posi- B137 23 0 or 5 0 or 5 Models with SI-DRIVE Waveform Description Con- nector No. Termi- nal No. Signal (V) Note Ignition SW ON (engine OFF) Engine ON (idling) |