Set Condition:
The Multi-Purpose Module (Police And Taxi Interface Module-PTIM) has detected the Fuel Level Status Signal
circuit below a calibrated value.

Possible Causes

(W514) FUEL LEVEL STATUS SIGNAL CIRCUIT SHORTED TO GROUND

AFTERMARKET LIGHT/SIREN CONTROLLER

MULTI-PURPOSE MODULE (POLICE AND TAXI INTERFACE MODULE-PTIM)

CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS

With the scan tool, read all active DTCs from all modules.

NOTE: Check for FCM configuration, CAN B or C hardware electrical, VIN Missing/Mismatch, battery or igni-
tion related DTCs.

Does the scan tool display any active DTCs to the conditions listed above?

Yes

>> Diagnose and repair the DTC. Refer to the Table of Contents in ELECTRONIC CONTROL MODULES -

ELECTRICAL DIAGNOSTICS for a complete list of the symptoms.

Perform BODY VERIFICATION TEST – VER 1. (Refer to BODY VERIFICATION TEST – VER 1).

>> Go To 2. Diagnostic Test

CHECK FOR ACTIVE DTC

With the scan tool, read the active DTCs.

Erase the DTCs.

Turn the ignition off, wait 10 seconds, then turn the ignition on.

With the scan tool, read the active DTC’s.

Does the scan tool display this DTC as active?

Yes

>> Go To 3.

>> If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness con-

nectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems.

Perform BODY VERIFICATION TEST – VER 1. (Refer to BODY VERIFICATION TEST – VER 1).

CHECK THE (W514) FUEL LEVEL STATUS SIGNAL CIRCUIT FOR A SHORT TO GROUND

Turn the ignition off.

Disconnect the Multi-Purpose Module (Police And Taxi Interface Mod-
ule-PTIM) C2 harness connector.

Measure the resistance of the (W514) Fuel Level Status Signal circuit
between ground and the Multi-Purpose Module (Police And Taxi Inter-
face Module-PTIM) C2 harness connector.

Is the resistance below 5.0 ohms?

Yes

>> Go To 4.

>> Go To 5.

MESSAGE CENTER - ELECTRICAL DIAGNOSTICS

8M - 5

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