Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
When the ACC/FCM-ECU is replaced, calibrate the radar (refer to ).
OPERATION
ACC/FCM-ECU communicates with the transmission range switch signal via the CAN bus lines.
DIAGNOSTIC TROUBLE CODE SET CONDITION
Check Conditions
More than 2 seconds have passed since the ignition switch was turned to "ON" position.
ACC/FCM-ECU power voltage is more than 9 volts and is less than 18 volts.
Judgment Criterion
The ECU receives an invalid transmission range switch signal from the TCM.
note
A DTC is not set as a historic fault.
PROBABLE CAUSES
Defective CVT system (Transaxle control system)
Malfunction of the ACC/FCM-ECU
DIAGNOSIS
STEP 1. Using scan tool (M.U.T.-IIISE), check the CVT system DTC.
caution
To prevent damage to scan tool (M.U.T.-IIISE), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-IIISE).
(1) Connect scan tool (M.U.T.-IIISE). Refer to "How to connect the Scan Tool (M.U.T.-IIISE) ."
(2) Turn the ignition switch to the "ON" position.
(3) Check the CVT DTC (Refer to GROUP 23A - Diagnosis <CVT>, Diagnostic Function ).
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is the DTC set?
Perform the relevant troubleshooting (Refer to GROUP 23A - Diagnosis <CVT>, Diagnostic Trouble Code Chart ).
Go to Step 2.
STEP 2. Using scan tool (M.U.T.-IIISE), check the TCM data list.
Check the TCM data list (Refer to GROUP 23A - Diagnosis <CVT>, Data List Reference Table ).
Ignition switch: ON
Engine: Stopped
Operate the selector lever
Item No.
Item name
Selector lever position
Normal condition
60
Transmission range switch: P
P
ON
Other than P
OFF
61
Transmission range switch: R
R
ON
Other than R
OFF
62
Transmission range switch: N
N
ON
Other than N
OFF
63
Transmission range switch: D
D
ON
Other than D
OFF
OK: Normal condition is displayed.
Is the check result normal?
Go to Step 3.
Proceed to the DTC procedure "P0705". (Refer to GROUP 23A - Diagnosis <CVT>, Diagnostic Trouble Code Chart ).
STEP 3. Using scan tool (M.U.T.-IIISE), check whether the DTC is set again.
Is the DTC C1747 set?
Replace the ACC/FCM-ECU (Refer to ).
It can be assumed that this malfunction is intermittent (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points, How to Cope with Intermittent Malfunction ).