-
Inspect the connector and socket terminals for a good pinfit to be sure they are all making good contact.
-
Reconnect the connector and make these input tests at the connector.
Cavity
|
Wire
|
Test condition
|
Test: Desired result
|
Possible cause if desired result is not obtained
|
1
|
BLK
|
Under all conditions
|
Check for voltage to ground: There should be less than 0.5 V.
|
-
Poor ground (G602)
-
An open in the wire
|
15
|
PNK
|
Under all conditions
|
Check for voltage to ground: There should be battery voltage.
|
|
16
|
PUR
|
Ignition switch ON (II)
|
Check for voltage to ground: There should be battery voltage.
|
|
-
Disconnect the 28P connector again, and make this input test at the connector.
-
If the test indicates a problem, find and correct the cause, then recheck the system.
-
If the input test proves OK, the Hands Free Telephone control unit must be faulty, replace it.
Cavity
|
Wire
|
Test condition
|
Test: Desired result
|
Possible cause if desired result is not obtained
|
18
|
LT GRN
|
Under all conditions
|
Check for continuity between No. 18 terminal and the driver's under-dash fuse/relay box connector Q (16P) terminal No. 3: There should be continuity.
|
An open in the wire
|
Driver's under-dash fuse/relay box connector Q (16P) disconnected
|
Check for continuity to ground: There should be no continuity.
|
Short to ground
|
|