Subaru IMPREZA GD 2007 Series Manual page 3158

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ABS Warning Light / Brake Warning Light Illumination Pattern
Step
1 CHECK ILLUMINATION OF OTHER LIGHTS.
Turn the ignition switch to ON. (engine OFF)
2 READ DTC.
Read the DTC. <Ref. to ABS(diag)-24, Read
Diagnostic Trouble Code (DTC).>
3 CHECK GROUND SHORT OF HARNESS.
1) Turn the ignition OFF.
2) Disconnect the ABSCM&H/U connectors.
3) Disconnect the connector from the combi-
nation meter.
4) Measure the resistance between ABSCM
connector and chassis ground.
Connector & terminal
(B301) No. 22 — Chassis ground:
4 CHECK ABSCM.
1) Connect the connector to the ABSCM&H/U.
2) Turn the ignition to ON.
3) Measure the resistance between the combi-
nation meter connector and chassis ground
soon after the ignition switch is turned to ON
(within 1.5 seconds).
Connector & terminal
(i10) No. 3 — Chassis ground:
Check
Do other warning lights illumi-
nate?
Is DTC displayed?
Is the resistance 1 MΩ or
more?
Is the resistance 1 MΩ or
more?
ABS(diag)-29
ABS (DIAGNOSTICS)
Yes No
Go to step 2. Check the combi-
nation meter.
Perform the diag- Go to step 3.
nosis according to
DTC.
Go to step 4. Repair harness
and connector
between
ABSCM&H/U and
combination meter.
Check the combi- Replace the
nation meter. ABSCM only. <Ref.
to ABS-7,
REPLACEMENT,
ABS Control Mod-
ule and Hydraulic
Control Unit
(ABSCM&H/U).>