PINPOINT TEST G240073P2

Pinpoint Tests

PINPOINT TEST G240073p2 : DTC C1748: FORWARD ALERT SWITCH CIRCUIT TEST

G240073t2 : CHECK THE FORWARD ALERT SWITCH CIRCUIT FOR SHORT CIRCUIT TO GROUND
1. Disconnect the battery negative terminal.
2. Disconnect the ACC module connector IP78.
3. Disconnect the forward alert switch connector IP50.
4. Measure the resistance between the ACC module connector, pin 20 (U) and GROUND.

- Is the resistance less than 10,000 ohms?

-> Yes
REPAIR the short to ground. CLEAR the DTC. TEST the system for normal operation.

-> No
INSTALL a new forward alert switch. CLEAR the DTC. TEST the system for normal operation. If the DTC is repeated, INSTALL a new ACC module.