Pinpoint Test F: DTC B1360-Ignition Acc/Run Circuit Open

WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

F1 CHECK CENTRAL JUNCTION BOX (CJB) FUSE 15 (5A) OR 30 (5A) FOR VOLTAGE
- Key in ACCESSORY position.
- Disconnect: CJB Fuse 15 (5A)
- Disconnect: CJB Fuse 30 (5A)
- Measure the following voltages:
  - measure the voltage between the CJB fuse cavity 15, input side and ground.
  - measure voltage between the CJB fuse cavity 30, input side and ground.
- Are the voltages greater than 10 volts?
Yes GO to F2.

No GO to F3.
F2 CHECK CIRCUITS 295 (LB/PK) OR 489 (PK/BK) FOR AN OPEN
- Key in OFF position.
- Disconnect: Instrument Cluster C220a.
- Disconnect: Instrument Cluster C220b.
- Measure the following resistances:
  - measure the resistance between instrument cluster C220b-18, circuit 295 (LB/PK), harness side and CJB fuse cavity 15 output side, circuit 295 (LB/PK).
  - measure the resistance between instrument cluster C220a-7, circuit 489 (PK/BK), harness side and CJB fuse cavity 30 output side, circuit 489 (PK/BK).
- Are the resistances less than 5 ohms?
Yes GO to F6.

No REPAIR circuit 295 (LB/PK) or circuit 489 (PK/BK). TEST the system for normal operation.
F3 CHECK CIRCUITS 687 (GY/YE) OR 16 (RD/LG) FOR AN OPEN
- Disconnect: Ignition Switch C250.
- Measure the following resistances:
  - measure the resistance between ignition switch C250-6, circuit 687 (GY/YE), harness side and CJB fuse cavity 15 input side, circuit 687 (GY/YE).
  - measure the resistance between ignition switch C250-1, circuit 16 (RD/LG), harness side and CJB fuse cavity 30 input side, circuit 16 (RD/LG).
- Are the resistances less than 5 ohms?
Yes GO to F4.

No REPAIR circuit 687 (GY/YE) or circuit 16 (RD/LG). TEST the system for normal operation.
F4 CHECK THE IGNITION SWITCH
- CARRY OUT the Ignition Switch Component Test. Refer to COMPONENT TESTING for schematic and connector information.
- Is the ignition switch OK?
Yes GO to F5.

No INSTALL a new ignition switch. REFER to STEERING COLUMN SWITCHES .

TEST the system for normal operation
F5 CHECK THE CJB
- Key in OFF position.
- Measure the resistance between the following CJB fuses input side and output side cavities:
  - measure the resistance between CJB fuse 15 input side and output side cavities.
  - measure the resistance between CJB fuse 30 input side and output side cavities.
- Are the resistances less than 5 ohms?
Yes GO to F6.

No INSTALL a new CJB. TEST the system for normal operation.
F6 CHECK THE IGNITION SWITCH PIDS
- Connect the diagnostic tool.
- Monitor the instrument cluster ignition ACC and RUN PIDs while cycling the ignition from ACC to RUN.
- Do the PIDs indicate the ignition switch position correctly?
Yes GO to F7.

No INSTALL a new instrument cluster. REFER to INFORMATION, GAUGES & WARNING DEVICES . REPEAT the self-test.
F7 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Key in OFF position.
- Disconnect all instrument cluster connectors.
- Check for:
  - corrosion
  - pushed-out pins
- Connect all instrument cluster connectors and make sure they are seated correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes INSTALL a new instrument cluster. REFER to INFORMATION, GAUGES & WARNING DEVICES REPEAT the self-test

No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. TEST the system for normal operation.