Ford Mustang 1999 - Pinpoint Test B: No Communication with the Module - Generic Electronic Module

PINPOINT TEST B: NO COMMUNICATION WITH THE MODULE — GENERIC ELECTRONIC MODULE
 Is the voltage greater than 10 volts?
Yes
GO to A4.
No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
A4 CHECK GROUND CIRCUIT 397 (BK/WH) FOR AN OPEN
Measure the resistance between instrument cluster C251 Pin 20, circuit 397 (BK/WH), harness side and
ground.
 Is the resistance less than 5 ohms?
Yes
GO to A5.
No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
A5 CHECK GROUND CIRCUIT 1205 (BK) FOR OPEN
Measure the resistance between instrument cluster C251 Pin 1, Circuit 1205 (BK), harness side and ground.
 Is the resistance less than 5 ohms?
Yes
REFER to Section 418-00.
No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
CONDITIONS DETAILS/RESULTS/ACTIONS
B1 CHECK CIRCUIT 1001 (WH/YE) FOR VOLTAGE
Page
10
of
32
1999 Mustang Workshop Manual
1/
18/
2013
http://www.fordtechservice.dealerconnection.com/pubs/content/~WSXB/~MUS~LEN/20/
...