Subaru 2003 LEGACY Service Manual page 56

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1 CHECK ENGINE GROUND TERMINALS.
Have engine ground terminals been tightened?
2 CHECK GROUND CIRCUIT OF ECM.
1) Turn ignition switch to OFF.
2) Disconnect connector from ECM.
3) Measure resistance of harness between
ECM and engine ground.
Connector & terminal
Non-TURBO without OBD model:
(B134) No. 27 — Engine ground:
(B134) No. 8 — Engine ground:
(B134) No. 7 — Engine ground:
(B136) No. 21 — Engine ground:
(B136) No. 22 — Engine ground:
(B135) No. 6 — Engine ground:
Non-TURBO with OBD model:
(B134) No. 7 — Engine ground:
(B134) No. 35 — Engine ground:
(B135) No. 21 — Engine ground:
(B136) No. 5 — Engine ground:
(B136) No. 16 — Engine ground:
(B136) No. 26 — Engine ground:
(B137) No. 14 — Engine ground:
TURBO model:
(B134) No. 7 — Engine ground:
(B134) No. 12 — Engine ground:
(B134) No. 15 — Engine ground:
(B134) No. 22 — Engine ground:
(B136) No. 8 — Engine ground:
(B136) No. 17 — Engine ground:
(B136) No. 18 — Engine ground:
(B137) No. 8 — Engine ground:
(B137) No. 9 — Engine ground:
(B84) No. 1 — Engine ground:
3.0 L model:
(B134) No. 7 — Engine ground:
(B134) No. 15 — Engine ground:
(B134) No. 22 — Engine ground:
(B136) No. 8 — Engine ground:
(B136) No. 17 — Engine ground:
(B136) No. 18 — Engine ground:
(B137) No. 8 — Engine ground:
(B137) No. 9 — Engine ground:
(B137) No. 21— Engine ground:
(B137) No. 31 — Engine ground:
Is the measured value less than the speci-
fied value?
Step Value
Engine ground terminals are
tightened correctly.
5 Ω
AT-54
Yes
Go to step 2. Tighten engine
ground terminals.
Go to step 3. Repair open circuit
in harness
between ECM
connector and
engine grounding
terminal.
No