NO -
Repair a short to ground in the wire between the ACC unit and the brake light relay.?
29. Measure the resistance between ACC unit 20P connector terminal No. 16 and brake light relay 5P connector terminal No. 3. There should be
less than 1.0 Ohms.
Is the resistance as specified?
YES -
Go to step 30.
NO -
Repair an open in the wire between the ACC unit and the brake light relay.?
30. Install the brake light relay.
31. Reconnect the ACC unit 20P connector.
32. Clear the DTCs with the HDS.
33. Turn the ignition switch to ON (II), then wait for 10 seconds, and press the MAIN switch ON.
34. Select ADAPTIVE CRUISE CONTROL (ACC) from the DRIVING SUPPORT menu, then enter ACC RELAY from the FUNCTION TEST
menu.
35. Do the brake light relay function test with the HDS.
36. Check for DTCs with the HDS.
Is DTC 30 indicated?
YES -
Check for loose or poor connections. If OK, update the ACC unit See: Cruise Control/Testing and Inspection/Programming and Relearning, then
recheck. If the ACC unit was already updated, replace the ACC unit See: Cruise Control/Cruise Control Module/Service and Repair.?
NO -
Troubleshoot the indicated DTC(s). If there are no DTCs, the system is OK at this time.?
37. Check for DTCs with the HDS.
Is DTC 30 indicated?
YES -
Go to step 38.
NO -
Go to step 44.
38. Test the brake light relay See: Power and Ground Distribution/Testing and Inspection/Power Relay Test.
