1. Engine turned off on its own after running for 2 mins, randomly happened while backing out of the garage, attempted to re-start, only cranks but does not crank over.

2. LIST OF DTCs
U041600 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE - ACTIVE

U028700 LOST COMMUNICATION WITH TRANSMISSION FLUID PUMP MODULE A - ACTIVE

U112300 DATABUS ERROR VALUE RECEIVED - ACTIVE

C052F00 ABS PUMP MOTOR SUPPLY VOLTAGE CIRCUIT/OPEN - ACTIVE

U112100 DATABUS MESSAGE MISSING - ACTIVE

U112300 DATABUS ERROR VALUE RECEVIED - ACTIVE

U020800 LOST COMMUNICATION WITH SEAT CONTROL MODULE A

B13BCF2 MULTIPLE COLLISION BRAKE NO FUNCTION

 

Ask an AI. Per ChatGPT:

Symptom summary

• Engine shut off while reversing (under load / low speed maneuver)
• Now: cranks but does not start
• Multiple simultaneous U-codes (network/communication faults) + ABS/power supply faults

This pattern strongly indicates a system-wide electrical power or communication failure, not an isolated engine component issue.

Most likely root causes (ranked)

1. Low system voltage / failing battery / loose terminal

This is the single most common cause given your DTC cluster.

Why it fits:

• U-codes across unrelated modules (ABS, transmission pump, seat module)
• ABS pump voltage circuit open (C052F00)
• Sudden stall during maneuver (high electrical load event: steering, braking, reversing sensors)
• Crank/no-start after stall

A weak battery or bad connection can:

• Drop module bus voltage
• Corrupt CAN communication → U-codes cascade
• Disable fuel/ignition enable logic → crank/no start

2. Main ground or power distribution fault

Common scenarios:

• Loose engine ground strap
• Corroded chassis ground point
• Failing battery ground to body/engine
• Blown main fusible link / power distribution block issue

This produces:

• Random module dropouts
• ABS pump supply faults
• “Lost communication” across multiple ECUs

3. ABS / stability system power failure cascading into CAN issues

The ABS code:

• C052F00 (pump motor supply voltage/open)

On many vehicles:

• ABS module is a CAN gateway or heavily integrated node
• If it drops out, it can trigger widespread U-codes

But it is usually secondary to voltage loss, not the root cause.

4. Transmission pump module communication loss

U028700 suggests loss of communication with transmission pump module.

This again typically happens when:

• CAN bus voltage collapses
• Module loses power supply rather than failing independently

5. Less likely but possible

• Water intrusion into fuse box / BCM area
• Failed Body Control Module (BCM)
• CAN bus short to ground or short between lines
• Immobilizer issue (usually would not generate this many unrelated U-codes)

Why it now only cranks but won’t start

Crank/no-start after a stall with network faults usually means:

• ECU is not fully booting or is intermittently resetting
• Fuel injection / ignition enable is not being authorized
• CAN network is unstable so key modules cannot coordinate start sequence

What to check first (in order)

1. Battery voltage (critical)

• Engine off: ~12.6V healthy
• Cranking: should stay above ~9.6–10V

If you see:

• <12V static → battery likely failed
• large drop during crank → battery or connection issue

2. Battery terminals

Check:

• Tightness (cannot rotate by hand)
• Corrosion under clamp (often invisible)
• Ground cable condition

3. Engine ground strap

Look for:

• Frayed braided strap from engine to chassis
• Loose bolt at transmission bellhousing / frame

4. Main fuse / power distribution

Inspect:

• Fusible link / main fuse box under hood
• ABS pump supply fuse (given C052F00)
• Signs of heat damage or melting

5. CAN wake-up behavior (quick clue test)

Turn ignition ON:

• Do dash lights fully initialize?
• Any flickering?
• ABS/traction lights immediately on?

If modules are unstable → power/ground issue almost confirmed.

Interpretation of your DTC cluster

This combination is important:

• U041600 (invalid data from vehicle dynamics control)
• U112100 / U112300 (bus errors/missing messages)
• U028700 (lost transmission pump module)
• C052F00 (ABS pump voltage open)

This is not a “multiple independent module failures” scenario.

It is almost always:
A shared electrical supply or ground failure affecting multiple modules at once.

Most probable outcome

In practice, cases like this resolve with:

• Battery replacement OR
• Ground cable repair/replacement OR
• Main fuse/terminal block repair

ECU/module replacement is statistically unlikely unless power checks are normal.

If you want a precise next step

Provide:

• Vehicle year/make/model/engine
• Battery age
• Voltage readings (resting + cranking)
• Whether dash fully powers up normally

Then the fault tree can be narrowed to a near-single point diagnosis.

 

BUMP