MANUFACTURER REFERENCE

Generic OBD-II code references — Page 82.

Read the source definition and confirm the exact vehicle, reporting module and diagnostic procedure.

Generic OBD-II

U007A

These are code references, not a list of confirmed faults on every vehicle. Read the source and applicability notes, then match the exact vehicle, year, engine and scan report.

Bus H has entered the CAN bus-off state

A ten-second bus-off finding on Mazda's CAN No.4

Control Module Communication Bus J Off

A Mazda bus fault on the diagnostic-connector path

front-camera CAN 8 bus-off and its downstream effects

FlexRay bus-off state in the object-control network

TBM2.0H Ethernet startup delay and stored faults

Vehicle Communication Bus F Performance

Vehicle Communication Bus F + Open

Vehicle Communication Bus F + Low

Vehicle Communication Bus F + High

Vehicle Communication Bus F - Open

Vehicle Communication Bus F - Low

Vehicle Communication Bus F - High

Vehicle Communication Bus F - Shorted to Bus F +

Vehicle Communication Bus G

Vehicle Communication Bus G Performance

Vehicle Communication Bus G (+) Open

Vehicle Communication Bus G (+) Low

Vehicle Communication Bus G (+) High

Vehicle Communication Bus G (-) Open

Vehicle Communication Bus G (-) Low

Vehicle Communication Bus G (-) High

Vehicle Communication Bus G (-) shorted to Bus G (+)

Vehicle Communication Bus H

Vehicle Communication Bus H Performance

Vehicle Communication Bus H (+) Open

Vehicle Communication Bus H (+) Low

Vehicle Communication Bus H (+) High

Vehicle Communication Bus H (-) Open

Vehicle Communication Bus H (-) Low

Vehicle Communication Bus H (-) High

Vehicle Communication Bus H (-) shorted to Bus H (+)

Vehicle Communication Bus I

Vehicle Communication Bus I Performance

Vehicle Communication Bus J

Vehicle Communication Bus J Performance

the brake controller misses expected engine messages

TCM message deadlines differ within one ECM monitor

Transfer-case message timeout after CAN communication is enabled

gear-shift module response missing on LIN bus 2

cruise-control messages stop reaching the ECM

Lost Communication With Fuel Injector Control Module

Engine and glow-plug controllers lose expected messages

Lost Communication With Throttle Actuator A Control Module

Lost Communication With Alternative Fuel Control Module

A fuel-pump communication code may use duty-cycle limits

Lost Communication With Exhaust Gas Recirculation Control Module A

Lost Communication With Exhaust Gas Recirculation Control Module B

Turbo-control communication uses separate message timeouts

Lost Communication With Turbocharger/Supercharger Control Module B

reductant control module CAN messages exceed their timeouts

The A/C module timeout is separate from a short reply failure

Mazda PHEV no-READY condition with luggage-compartment corrosion

Cherokee hybrid battery communication and coordinated software

Lost Communication With Battery Energy Control Module B

Lost Communication With Emissions Critical Control Information

Lost Communication With Four-Wheel Drive Clutch Control Module

The local PCM link that limits Mazda transmission functions

Lost Communication With Coolant Temperature Control Module

Lost Communication With PTO Control Module

Lost Communication With Fuel Additive Control Module

Lost Communication With Fuel Cell Control Module

Lost Communication With Exhaust Gas Sensor Module A

Lost Communication With Rocker Arm Control Module A

Lost Communication With Rocker Arm Control Module B

Lost Communication With All Wheel Drive Control Module

Lost Communication With Throttle Actuator B Control Module

Lost Communication With V2X Module

How Mazda times a lost starter-generator message

the TCM loses ABS-controller messages

A brake-controller communication fault can stop headlamp leveling

Lost Communication With Yaw Rate Sensor Module

Lost Communication With Lateral Acceleration Sensor Module

missing inertial data rather than a generic transmission timeout

Steering-angle module message is missing at the receiver

A TPMS communication code stored by the restraint module

The restraint module can lose parking-brake messages

the ECM misses brake-system control messages

Chassis-control module A messages stop arriving