Check Engine Control Module
WARNING: This page is about a different car, the 2004 Subaru Outback, 2004 Subaru Legacy, and 2004 Subaru Baja. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE CONTROL MODULE CHART
| Step |
Check |
Yes |
No |
1 CHECK ENGINE CONTROL MODULE SIGNAL.
- Start the engine.
- Measure voltage between engine control module connector and engine ground.
Connector & terminal
- H4 with TURBO:
(B134) No. 23 (+) - Engine ground (-):
- H6 model:
(B136) No. 9 (+) - Engine ground (-):
- H4 NA U5 model:
(B137) No. 9 (+) - Engine ground (-):
- H4 NA model (Except U5 model):
(B134) No. 10 (+) - Engine ground (-):
|
Is the measured value within 0 V to 14 V? |
Go to step 2
. |
Check engine control module. < Ref. to
BASIC DIAGNOSTIC PROCEDURE
or
BASIC DIAGNOSTIC PROCEDURE
or
BASIC DIAGNOSTIC PROCEDURE
or
BASIC DIAGNOSTIC PROCEDURE
. |
2 CHECK HARNESS BETWEEN COMBINATION METER AND ENGINE CONTROL MODULE.
- Turn ignition switch to OFF.
- Disconnect connector from engine control module and combination meter.
- Measure resistance between engine control module harness connector and combination meter harness connector.
Connector & terminal
- H4 with TURBO:
(B134) No. 23 - (H1) No. 7:
- H6 model:
(B136) No. 9 - (H1) No. 7:
- H4 NA U5 model:
(B137) No. 9 - (H1) No. 7:
- H4 NA model (Except U5 model):
(B134) No. 10 - (i11) No. 7:
|
Is the measured value less than 10 ohm? |
Check tachometer. < Ref. to REMOVAL
. > |
Repair wiring harness. |