DTC Troubleshooting: 61
DTC 61:
 Millimeter Wave Radar Communication Error
  1. Turn the ignition switch to ON (II).
  1. Watch the ACC indicator and CMBS indicator.
Do the indicators come on?
YES -
Go to Step 4 .
NO -
Intermittent failure, the system is OK at this time.■
Is DTC 61 indicated?
YES -
Go to Step 5 .
NO -
Troubleshoot the indicated DTC(s). If there are no DTCs, the system is OK at this time.■
  1. Turn the ignition switch to LOCK (0).
  1. Check the No. 2 (7.5 A) fuse in the driver's under-dash fuse/relay box.
Is the fuse OK?
YES -
Go to Step 7 .
NO -
Replace the fuse and recheck.■
  1. Disconnect the 5P connector from the millimeter wave radar.
  1. Turn the ignition switch to ON (II).
  1. Check for voltage between the millimeter wave radar 5P connector No. 1 terminal and body ground.
Is there battery voltage?
YES -
Go to Step 10 .
NO -
Repair an open in the wire between the millimeter wave radar and the No. 22 (7.5 A) fuse in the driver's under-dash fuse/relay box.■
  1. Turn the ignition switch to LOCK (0).
  1. Check for continuity between the millimeter wave radar 5P connector No. 4 terminal and body ground.
Is there continuity?
YES -
Go to Step 12 .
NO -
  1. Turn the ignition switch to ON (II) and main switch to ON.
  1. Check for voltage between the millimeter wave radar 5P connector No. 5 terminal and body ground.
Is there battery voltage?
YES -
Go to Step 18 .
NO -
Go to Step 14 .
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the ACC unit 20P connector.
  1. Turn the ignition switch to ON (II).
  1. Check for voltage between the ACC unit 20P connector No. 17 terminal and body ground.
Is there battery voltage?
YES -
Repair an open in the wire between the ACC unit and the millimeter wave radar.■
NO -
Check for loose or poor connections. If the connections are OK, update the ACC unit, then recheck. If the ACC unit was already updated, replace the ACC unit, then go to Step 18 .
  1. Turn the ignition switch to LOCK (0).
  1. Check for continuity between the millimeter wave radar 5P connector No. 5 terminal and body ground.
Is there continuity?
YES -
Repair a short to ground in the wire between the ACC unit and the millimeter wave radar.■
NO -
Check for loose or poor connections. If the connections are OK, update the ACC unit, then recheck. If the ACC unit was already updated, replace the ACC unit. ■
  1. Turn the ignition switch to ON (II).
  1. Watch the ACC indicator and CMBS indicator.
Do the indicators come on?
YES -
Go to Step 23 .
NO -
Intermittent failure, the system is OK at this time.■
Is DTC 61 indicated?
YES -
Check for loose or poor connections. If the connections are OK, replace the millimeter wave radar. After replacement, do the millimeter wave radar aiming. ■
NO -
Troubleshoot the indicated DTC(s). If there are no DTCs, the system is OK at this time.■