On-Vehicle Inspection

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
NOTE:
- Some systems need to be initialized after the cable is reconnected (see INITIALIZATION ).
- After the ignition switch is turned OFF, the navigation system requires approximately 90 seconds to record various types of memory and settings. As a result, after turning the ignition switch OFF, wait 90 seconds or more before disconnecting the cable from the negative (-) battery terminal.
REMOVE CIRCUIT OPENING RELAY (C/OPN)
1. Remove the engine room relay block cover.
2. Remove the circuit opening relay from the engine room relay block.

INSPECT CIRCUIT OPENING RELAY

Measure the resistance according to the value(s) in the table below.

Standard resistance

CIRCUIT OPENING RELAY

Tester Connection	Condition	Specified Condition
3 - 5	When battery voltage is not applied to terminals land 2	10 kΩ or higher
3 - 5	When battery voltage is applied to terminals 1 and 2	Below 1 Ω

If the result is not as specified, replace the relay.

Fig 1: Inspecting Circuit Opening Relay

INSTALL CIRCUIT OPENING RELAY
CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
NOTE: Some systems need to be initialized after the cable is reconnected (see INITIALIZATION ).