6-2-146 ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE)
DTC P1601 Can Communication Error
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
• Connect scan tool to DLC with ignition switch turned OFF.
• Turn ON ignition switch and clear DTC by using scan tool, then start engine and run it for 1 min. or more.
• Check DTC and pending DTC.
Troubleshooting
1. ECM
2. TCM
E21-8
E21-7
RED
WHT
E13-17
E13-7
E23 E22 E21
12345671234561234567
7
891011121314151617 8910111213141516 891011121314151617
1819
1819
1718192021222324252627 20212223 202122232425 24252627 2627
2829303132 32 282930 28293031 3133 33 323334 3435 3435
2
1
DTC Detecting Condition Trouble Area
Transmission or reception error of communication data
is detected by ECM for specified time continuously.
(1 driving cycle detection logic)
•“RED” or “WHT” wire circuit open or short
• TCM malfunction
• ECM malfunction
Step Action Yes No
1Was “Engine and Emission Control System”
performed?
Go to Step 2. Go to “Engine and Emis-
sion Control System” in
this section.
2DTC check
1) Check DTC of ECM and TCM.
Is there any DTC(s) (other than DTC P1601
and DTC P1701)?
Go to applicable DTC
diag. flow table.
Go to Step 3.
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