Toyota Corolla 2002 Repair Manual Supplement page 383

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05- -282
DTC
DTC
CIRCUIT DESCRIPTION
When the ignition switch is on, battery positive voltage is applied to terminal MREL in the transmission control
ECU.
When battery positive voltage is applied to terminal MREL, the AMT relay turns on and then battery positive
voltage is applied to terminal +BM of the transmission control ECU.
The operations of the clutch motor, shift motor and select motor stop if terminal PGND of the transmission
control ECU is open or disconnected.
DTC No.
The transmission control ECU detects the following conditions
simultaneously:
P0885/17
(a) Voltage is supplied to MREL circuit
(b) +BM voltage is 6.29 V or less for 0.5 seconds.
The transmission control ECU detects the following conditions
simultaneously:
P0887/18
(a) No voltage is supplied to MREL circuit
(b) +BM voltage is 6.29 V or more for 0.1 seconds.
COROLLA Supplement (RM1129E)
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DIAGNOSTICS
P0885/17 TCM POWER RELAY CONTROL
CIRCUIT(OPEN)
P0887/18 TCM POWER RELAY CONTROL
CIRCUIT(SHORT)
DTC Detecting Condition
TOYOTA COROLLA REPAIR MANUAL SUPP 1129E
-- MULTI--MODE MANUAL TRANSMISSION SYSTEM
S AMT fuse
S AMT relay
S Open in MREL signal circuit
S Open in PGND signal circuit
S Open in +BM signal circuit
S Transmission control ECU
S AMT fuse
S AMT relay
S Short in MREL signal circuit
S Short in PGND signal circuit
S Short in +BM signal circuit
S Transmission control ECU
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Trouble Area
05L4J--02