*NO RESPONSE FROM RADIO
For a complete wiring diagram Refer to Section 8W.
Possible Causes
|
(A413) FUSED B(+) CIRCUIT OPEN OR SHORTED
|
(Z916) GROUND CIRCUIT OPEN
|
(D265) AND (D264) CAN C INTERIOR BUS (125K) CIRCUITS OPEN
|
RADIO
|
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
NOTE:
Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.
With the scan tool, select ECU View.
NOTE:
A red X will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is
active on the Bus network.
Does the scan tool display a red X next to the module?
Yes
No
-
The no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially
broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.
2.
(A413) FUSED B(+) CIRCUIT OPEN OR SHORTED
Turn the ignition off.
Disconnect the Radio harness connector.
Using a 12-volt test light connected to ground, check the (A413) Fused B(+) circuit.
Does the test light illuminate brightly?
Yes
No
3.
(Z916) GROUND CIRCUIT OPEN
Using a 12-volt test light connected to 12-volts, check the (Z916) ground circuit.
Does the test light illuminate brightly?
Yes
No
4.
(D265) OR (D264) CAN C INTERIOR BUS (125K) CIRCUIT OPEN
Measure the resistance of the (D264) CAN C Interior Bus (-) (125K) circuit between the TIPM C7 harness connector and the Radio harness connector.
Measure the resistance of the (D265) CAN C Interior Bus (+) (125K) circuit between the TIPM C7 harness connector and the Radio harness connector.
Is resistance below 5.0 ohms on both circuits?
Yes
No