2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 104
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
C1A18 LASER AIMING INCMP
1.ADJUST LASER BEAM AIMING
1. Adjust laser beam aiming. See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Testing and
Inspection/Programming and Relearning/Laser Beam Aiming Adjustment/Outline.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
3. Check if "C1A18: LASER AIMING INCMP" (DTC 18) is indicated in self-diagnosis item in the display.
Is it indicated?
YES - 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
NO - INSPECTION END
C1A21
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
C1A21 UNIT HIGH TEMP
1.CHECK SYMPTOM
Check if cooling system malfunctions.
Does it malfunction?
YES - 1. Repair cooling system.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
NO - 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
C1A24
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
C1A24 NP RANGE
1.PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS
1. Perform self-diagnosis.
2. Check if "U1000: CAN COMM CIRCUIT" (DTC100) other than "C1A24: NP RANGE" (DTC 24) is indicated in self-diagnosis item in the
display.
Is it indicated?
YES - 1. CAN communication inspection. See: U Code Charts/U1000/ACS/ICC.
2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
NO - GO TO 2.
2.CHECK TCM DATA MONITOR
With CONSULT-III
With "TRANSMISSION" "Data Monitor" check if gear positions are correct.
OK or NG
OK - 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
NG - 1. Perform "TRANSMISSION" self-diagnosis. See: Powertrain Management/Transmission Control Systems/Testing and Inspection/Scan
Tool Testing and Procedures/5AT RE5R05A/Trouble Diagnosis/CONSULT-III Function (Transmission) (for 5AT models) or See: Diagnostic
Trouble Code Descriptions/DTC Index/TCM (for 7AT models).
2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
C1A26
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
C1A26 ECD MODE MALF
1.PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS
1. Perform self-diagnosis.
2. Check if "U1000: CAN COMM CIRCUIT" (DTC 100) other than "C1A26: ECD MODE MALF" (DTC 26) is indicated in self-diagnosis item
in the display.
Is it indicated?
YES - 1. CAN communication inspection. See: U Code Charts/U1000/ACS/ICC.
2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
NO - GO TO 2.
2.PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
