Flashing dash lights and gauges

Replacing a fuel pump has nothing to do with instrument cluster lights or the clock staying on. Unless you shorted wires , did you disconnect the negative battery cable before hand ?
The body control module (BCM) performs the following functions:
• A/C compressor request
• A/C cooling fan
• Exterior and interior lighting control
- Daytime running lights (DRL)
- Automatic lighting control
- Fog lamps
- Interior lighting
• Battery rundown
• Chime
• Gauge control
• Instrument cluster indicator control
• Fuel gauge control
• Temperature gauge control
• Theft deterrent
Interpreting all of the driver warnings sent by the control modules on the class 2 serial data line
Sending the information to the instrument cluster in the form of a SPI serial data bus message
The following list of messages are sent by the BCM to the instrument cluster:
• Fuel gauge position
• Temperature gauge position
• Oil pressure
• Low engine coolant
• Check oil
• Volts
• ABS
• High beam
• Low fuel
• High temperature
• Washer fluid level low
• CRUISE
• BRAKE
• SERVICE VEHICLE SOON
• Door ajar
• Seat belt
• THEFT SYSTEM
• PRNDL
Check the fuel level sensor wires , the fuel level sensor is a input to the BCM .

may have left a ground wire off behind the dash or the main connector isnt seated all the way in..

need vechicle model type year.have battery checked.battery cables could be faulty.if all is good. have ECM and BCM checked out.if they go bad they will drain battery.

Have your battery tested or first clean the terminals and cables. Check the ground cables, not just the one on the battery but frm engine to body etc etc.

Dead Battery

Hope this helps.



Item Part Number Description 1 — Instrument cluster 2 — Odometer reset shaft 3 — Air bag warning indicator 4 — RH turn signal indicator 5 — Charging system warning indicator 6 — Tachometer 7 — Low oil pressure warning indicator 8 — Brake system warning indicator 9 — Cruise control indicator 10 — Check fuel cap indicator 11 — Anti-lock brake system (ABS) warning indicator 12 — Check transmission indicator 13 — Odometer 14 — Transmission range selector indicator 15 — Trip odometer 16 — Theft indicator 17 — Low coolant indicator (if equipped) 18 — Safety belt warning indicator 19 — Low fuel warning indicator 20 — Fuel gauge 21 — Malfunction indicator lamp (MIL) 22 — Door ajar warning indicator 23 — Traction control indicator (if equipped) 24 — Engine coolant temperature gauge 25 — High beam indicator 26 — LH turn signal indicator 27 — Speedometer

Item Part Number Description 1 — Tachometer 2 — LH turn indicator 3 — Oil pressure gauge 4 — Overdrive (O/D) off/tow haul indicator 5 — Engine temperature gauge 6 — Air bag warning indicator 7 — Safety belt warning indicator 8 — Fuel gauge 9 — Tire Pressure Monitoring System (TPMS) warning indicator 10 — Speed control indicator 11 — Transmission temperature gauge 12 — RH turn indicator 13 — Speedometer 14 — Malfunction Indicator Lamp (MIL) 15 — Message center indicator display area 16 — High beam indicator 17 — ABS warning indicator 18 — Brake warning indicator 19 — Message center display area 20 — Anti-theft indicator

first, you need to read the Lamp Fault Code, LFC from the flashing light. Here's how:

Lamp Fault Codes
When the restraints control module (RCM) detects a system fault, it will cause the air bag indicator to flash a coded sequence: a lamp fault code (LFC). The code is two digits. The first digit is flashed with a 0.5 second interval between pulses. There is a 2 second pause before the second digit is flashed, which also has a 0.5 second interval between pulses. There is a 5 second pause between each display of an LFC.
Each LFC is flashed five times after which the air bag indictor will remain lit for the remainder of the key-on cycle. If there are multiple LFCs, each LFC will flash in order of priority.
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The fault could be in the air bag circuits, the canopy circuits, the pretensioner circuit on the seat belts, etc.
Report back with code.

here's some of system.

SECTION 501-20B: Supplemental Restraint System 2003 Expedition/Navigator Workshop Manual
DESCRIPTION AND OPERATION Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) The air bag supplemental restraint system (SRS) is designed to provide increased collision protection for front seat and second row outboard occupants in addition to that provided by the three-point safety belt system. Safety belt use is necessary to obtain the best occupant protection and to receive the full advantage of the SRS.
This vehicle line contains dual stage deployment (advanced restraint system) driver and front passenger air bag modules. These vehicles can also be equipped with optional safety canopies that deploy from the A-pillar to the C-pillar upon a side impact or if a rollover condition is detected. If equipped with safety canopies, a unique restraints control module (RCM) is used.
See the following illustration for deployable component location.
Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) Deployable Components Item Part Number Description 1 611D10 Passenger air bag module 2 042D94 Passenger side safety canopy module 3 042D95 Driver side safety canopy module 4 61203 Driver safety belt buckle and pretensioner 5 043B13 Driver air bag module 6 14A664 Clockspring 7 61202 Passenger safety belt buckle and pretensioner


Item Part Number Description 1 14B321 Restraints control module (RCM) 2 14B345 Second row, C-pillar side impact sensor 3 14B345 Second row, C-pillar side impact sensor 4 14B416 Driver seat track position sensor 5 14B345 Front row, driver door, side impact sensor 6 14B006 Front impact severity sensor 7 14B345 Front row, passenger door, side impact sensor

you did'nt state year, make, model. If you are talking about the seat belt light, check your seat belt(the one with the push/release button. check this top to bottom for a broken wire. ckeck under the seat the harness may be damaged as well. If it is the air-bag light bring it to your mechanic. air-bag circuits should be touched without the right knowledge and tools.

your alternator probably is not charging please have checked to see if charging auto zone will do this for you.