U2008

: U2008; PHONE MODULE NOT RESPONDING

G239843t235 : CHECK PHONE MODULE, USING OPTICAL BUS TESTER
1. Connect the optical bus tester to the fibre optic lead connector DB03.
2. Set the optical bus tester to BY-PASS.
3. CLEAR the DTC.
4. Turn the ignition switch to the ACC position.
5. Wait for 10 seconds.
6. Check for ' not responding' DTCs.

- Is U2008 set?

-> Yes
For 'wake-up' signal circuit tests, [[G239843p5]].

-> No

G239843t236 : CHECK FOR DTC U2602 OR U2603
1. Check DTCs.

- Are codes U2602 or U2603 logged?

-> Yes
For optical ring tests, [[G239843p29]], and [[G239843p30]].

-> No
Recheck DTCs. No break in optical harness.