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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
7
CHECK ECM POWER SUPPLY AND
GROUND LINE.
Check ECM power supply circuit and ground
circuit. <Ref. to EN(H4SO 2.0)(diag)-54,
CHECK POWER SUPPLY AND GROUND
LINE OF ENGINE CONTROL MODULE
(ECM), Diagnostics for Engine Starting Fail-
ure.> <Ref. to EN(H4SO 2.5)(diag)-57,
CHECK POWER SUPPLY AND GROUND
LINE OF ENGINE CONTROL MODULE
(ECM), Diagnostics for Engine Starting Fail-
ure.> <Ref. to EN(H4DOTC)(diag)-53, CHECK
POWER SUPPLY AND GROUND LINE OF
ENGINE CONTROL MODULE (ECM), Diag-
nostics for Engine Starting Failure.> <Ref. to
EN(H6DO)(diag)-57, CHECK POWER SUP-
PLY AND GROUND LINE OF ENGINE CON-
TROL MODULE (ECM), Diagnostics for
Engine Starting Failure.>
AA:DTC P1718 CAN COMMUNICATION CIRCUIT
NOTE:
Refer to "Body Integrated Module" for diagnosis of P1718. <Ref. to LAN(diag)-2, Basic Diagnostic Proce-
dure.>
Check
Is there any abnormal condi-
tion?
4AT(diag)-106
Yes
Repair the mal-
Replace the TCM.
function of ECM
<Ref. to 4AT-66,
power supply cir-
Transmission Con-
cuit and ground
trol Module
circuit.
(TCM).>
No
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