Pinpoint Test E: DTC C1A67:54 Or C1A67:76

Cruise Control

Pinpoint Tests

Pinpoint Test E: DTC C1A67:54 Or C1A67:76

Refer to Wiring Diagram Set 31, Speed Control for schematic and connector information. Diagrams By Number

Normal Operation

The adaptive cruise control system is enabled when the vehicle speed is set and the Cruise-Control Module (C-CM), which is a radar unit, determines the distance and relative speed of the vehicle that is in the path of travel. The C-CM can be aligned both vertically and horizontally. The vertical alignment is a manual procedure carried out by adjusting the C-CM adjustment screw. The horizontal alignment is a software procedure that is carried out internal to the C-CM. The C-CM communicates over the High Speed Controller Area Network (HS-CAN).

- DTC C1A67:54 (Forward Looking Sensor: Missing Calibration) - set by the C-CM as a continuous memory and on-demand DTC if the C-CM detects a misalignment of the radar due to the alignment angle being out of range.
- DTC C1A67:76 (Forward Looking Sensor: Wrong Mounting Position) - set by the C-CM as a continuous memory and on-demand DTC if the C-CM detects a misalignment of the radar due to the vertical alignment angle being out of range.

This pinpoint test is intended to diagnose the following:

- C-CM out of alignment



PINPOINT TEST E: DTC C1A67:54 OR C1A67:76

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

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E1 INSPECT THE C-CM BRACKET


- Inspect for damage to the C-CM bracket.
- Is the C-CM bracket damaged?

Yes
REPAIR or REPLACE the C-CM bracket as necessary. REFER to Cruise-Control Module (C-CM) Service and Repair. TEST the system for normal operation.

No
GO to E2.

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E2 CARRY OUT THE VERTICAL AND HORIZONTAL ALIGNMENT


- Carry out the alignment procedures for the C-CM. Refer to Cruise Control Module (C-CM) (with Sensor) Adjustment Adjustments.
- Does the C-CM align correctly?

Yes
The system is operating correctly at this time. The concern was caused by a misaligned sensor.

No
INSTALL a new C-CM. REFER to Cruise-Control Module (C-CM) Service and Repair with sensor. CLEAR the DTCs. TEST the system for normal operation.

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