P CODE FAMILY
Powertrain code references — Page 80.
Engine, transmission and powertrain diagnostic references. Exact vehicle and module context still matters.
Generic OBD-II
P267B
B Rocker Arm Actuator Position Sensor Circuit Range/Performance Bank 2
PowertrainRead the code
Generic OBD-II
P267C
B Rocker Arm Actuator Position Sensor Circuit Low Bank 2
PowertrainRead the code
Generic OBD-II
P267D
B Rocker Arm Actuator Position Sensor Circuit High Bank 2
PowertrainRead the code
Generic OBD-II
P267E
B Rocker Arm Actuator Position Sensor Circuit Intermittent/Erratic Bank 2
PowertrainRead the code
Generic OBD-II
P267F
Control Module Internal Temperature Sensor A Circuit Intermittent/Erratic
PowertrainRead the code
Generic OBD-II
P2680
Coolant Degassing Valve Control Circuit High
PowertrainRead the code
Generic OBD-II
P2681
Engine Coolant Bypass Valve A Control Circuit/Open
PowertrainRead the code
Generic OBD-II
P2682
Engine Coolant Bypass Valve A Control Circuit Low
PowertrainRead the code
Generic OBD-II
P2683
Engine Coolant Bypass Valve A Control Circuit High
PowertrainRead the code
Generic OBD-II
P2684
Actuator Supply Voltage C Circuit/Open
PowertrainRead the code
Generic OBD-II
P2685
Actuator Supply Voltage C Circuit Low
PowertrainRead the code
Generic OBD-II
P2686
Actuator Supply Voltage C Circuit High
PowertrainRead the code
Generic OBD-II
P2687
Fuel Supply Heater Control Circuit/Open
PowertrainRead the code
Generic OBD-II
P2688
Fuel Supply Heater Control Circuit Low
PowertrainRead the code
Generic OBD-II
P2689
Fuel Supply Heater Control Circuit High
PowertrainRead the code
Generic OBD-II
P268A
Fuel Injector Calibration Not Learned/Programmed
PowertrainRead the code
Generic OBD-II
P268B
High Pressure Fuel Pump Calibration Not Learned/Programmed
PowertrainRead the code
Generic OBD-II
P268C
Cylinder 1 Injector Data Incompatible
PowertrainRead the code
Generic OBD-II
P268D
Cylinder 2 Injector Data Incompatible
PowertrainRead the code
Generic OBD-II
P268E
Cylinder 3 Injector Data Incompatible
PowertrainRead the code
Generic OBD-II
P268F
Cylinder 4 Injector Data Incompatible
PowertrainRead the code
Generic OBD-II
P2690
Cylinder 5 Injector Data Incompatible
PowertrainRead the code
Generic OBD-II
P2691
Cylinder 6 Injector Data Incompatible
PowertrainRead the code
Generic OBD-II
P2692
Cylinder 7 Injector Data Incompatible
PowertrainRead the code
Generic OBD-II
P2693
Cylinder 8 Injector Data Incompatible
PowertrainRead the code
Generic OBD-II
P2694
Cylinder 9 Injector Data Incompatible
PowertrainRead the code
Generic OBD-II
P2695
Cylinder 10 Injector Data Incompatible
PowertrainRead the code
Generic OBD-II
P2696
Injector Data Incompatible
PowertrainRead the code
Generic OBD-II
P2697
Exhaust Aftertreatment Fuel Injector A Circuit/Open
PowertrainRead the code
Generic OBD-II
P2698
Exhaust Aftertreatment Fuel Injector A Performance
PowertrainRead the code
Generic OBD-II
P2699
Exhaust Aftertreatment Fuel Injector A Circuit Low
PowertrainRead the code
Generic OBD-II
P269A
Exhaust Aftertreatment Fuel Injector A Circuit High
PowertrainRead the code
Generic OBD-II
P269B
Exhaust Aftertreatment Glow Plug Control Circuit/Open
PowertrainRead the code
Generic OBD-II
P269C
Exhaust Aftertreatment Glow Plug Control Performance
PowertrainRead the code
Generic OBD-II
P269D
Exhaust Aftertreatment Glow Plug Control Circuit Low
PowertrainRead the code
Generic OBD-II
P269E
Exhaust Aftertreatment Glow Plug Control Circuit High
PowertrainRead the code
Generic OBD-II
P269F
Exhaust Aftertreatment Glow Plug Circuit/Open
PowertrainRead the code
Generic OBD-II
P26A0
Exhaust Aftertreatment Glow Plug Performance
PowertrainRead the code
Generic OBD-II
P26A1
Exhaust Aftertreatment Glow Plug Circuit Low
PowertrainRead the code
Generic OBD-II
P26A2
Exhaust Aftertreatment Glow Plug Circuit High
PowertrainRead the code
Generic OBD-II
P26A3
Engine Coolant Bypass Valve A Range/Performance
PowertrainRead the code
Generic OBD-II
P26A4
Engine Coolant Bypass Valve A Position Sensor Circuit
PowertrainRead the code
Generic OBD-II
P26A5
Engine Coolant Bypass Valve A Position Sensor Circuit Range/Performance
PowertrainRead the code
Generic OBD-II
P26A6
Engine Coolant Bypass Valve A Position Sensor Circuit Low
PowertrainRead the code
Generic OBD-II
P26A7
Engine Coolant Bypass Valve A Position Sensor Circuit High
PowertrainRead the code
Generic OBD-II
P26A8
Engine Coolant Bypass Valve A Position Sensor Circuit Intermittent/Erratic
PowertrainRead the code
Generic OBD-II
P26A9
Engine Coolant Bypass Valve A Position Sensor Stop/Minimum Stop Performance
PowertrainRead the code
Generic OBD-II
P26AA
Engine Coolant Bypass Valve A Position Sensor Maximum Stop Performance
PowertrainRead the code
Generic OBD-II
P26AB
Engine Coolant Bypass Valve A Stuck/Open
PowertrainRead the code
Generic OBD-II
P26AC
Engine Coolant Bypass Valve B Control Circuit/Open
PowertrainRead the code
Generic OBD-II
P26AD
Engine Coolant Bypass Valve B Control Circuit Low
PowertrainRead the code
Generic OBD-II
P26AE
Engine Coolant Bypass Valve B Control Circuit High
PowertrainRead the code
Generic OBD-II
P26AF
Engine Coolant Bypass Valve B Stuck/Open
PowertrainRead the code
Generic OBD-II
P26B0
Engine Coolant Bypass Valve B Range/Performance
PowertrainRead the code
Generic OBD-II
P26B1
Engine Coolant Bypass Valve A Stuck Closed
PowertrainRead the code
Generic OBD-II
P26B2
Engine Coolant Bypass Valve B Stuck Closed
PowertrainRead the code
Generic OBD-II
P26B3
Fuel Shutoff Valve A Control Circuit Performance/Stuck Off
PowertrainRead the code
Generic OBD-II
P26B4
Fuel Shutoff Valve A Control Circuit Stuck On
PowertrainRead the code
Generic OBD-II
P26B5
Fuel Shutoff Valve B Control Circuit Performance/Stuck Off
PowertrainRead the code
Generic OBD-II
P26B6
Fuel Shutoff Valve B Control Circuit Stuck On
PowertrainRead the code
Generic OBD-II
P26B7
Engine Coolant Bypass Valve C Control Circuit/Open
PowertrainRead the code
Generic OBD-II
P26B8
Engine Coolant Bypass Valve C Control Circuit Low
PowertrainRead the code
Generic OBD-II
P26B9
Engine Coolant Bypass Valve C Control Circuit High
PowertrainRead the code
Generic OBD-II
P26BA
Engine Coolant Bypass Valve C Stuck/Open
PowertrainRead the code
Generic OBD-II
P26BB
Engine Coolant Bypass Valve C Range/Performance
PowertrainRead the code
Generic OBD-II
P26BC
Engine Coolant Bypass Valve C Stuck Closed
PowertrainRead the code
Generic OBD-II
P26BD
Engine Coolant Bypass Valve D Control Circuit/Open
PowertrainRead the code
Generic OBD-II
P26BE
Engine Coolant Bypass Valve D Control Circuit Low
PowertrainRead the code
Generic OBD-II
P26BF
Engine Coolant Bypass Valve D Control Circuit High
PowertrainRead the code
Generic OBD-II
P26C0
Engine Coolant Bypass Valve D Stuck/Open
PowertrainRead the code
Generic OBD-II
P26C1
Engine Coolant Bypass Valve D Range/Performance
PowertrainRead the code
Generic OBD-II
P26C2
Engine Coolant Bypass Valve D Stuck Closed
PowertrainRead the code
Generic OBD-II
P26C3
Internal Control Module Transmission Range Sensor Performance
PowertrainRead the code
Generic OBD-II
P26C4
Internal Control Module Clutch Pedal Performance
PowertrainRead the code
Generic OBD-II
P26C5
Exhaust Flow Control Valve A Control Circuit/Open
PowertrainRead the code
Generic OBD-II
P26C6
Exhaust Flow Control Valve A Control Circuit Low
PowertrainRead the code
Generic OBD-II
P26C7
Exhaust Flow Control Valve A Control Circuit High
PowertrainRead the code
Generic OBD-II
P26C8
Chassis Control Module 1 Requested MIL Illumination
PowertrainRead the code
Generic OBD-II
P26C9
Chassis Control Module 2 Requested MIL Illumination
PowertrainRead the code
Generic OBD-II
P26CA
Engine Coolant Pump Control Circuit/Open
PowertrainRead the code
Generic OBD-II
P26CB
Engine Coolant Pump Performance/Stuck Off
PowertrainRead the code
Generic OBD-II
P26CC
Engine Coolant Pump Control Circuit Low
PowertrainRead the code
Generic OBD-II
P26CD
Engine Coolant Pump Control Circuit High
PowertrainRead the code
Generic OBD-II
P26CE
Engine Coolant Pump Overspeed/Air In System
PowertrainRead the code
Generic OBD-II
P26CF
Engine Coolant Pump Control Module System Voltage
PowertrainRead the code
Generic OBD-II
P26D0
Engine Coolant Pump Control Module System Voltage Low
PowertrainRead the code
Generic OBD-II
P26D1
Engine Coolant Pump Control Module System Voltage High
PowertrainRead the code
Generic OBD-II
P26D2
Engine Coolant Pump Control Module Over Temperature
PowertrainRead the code
Generic OBD-II
P26D3
Engine Coolant Pump Supply Voltage Circuit
PowertrainRead the code
Generic OBD-II
P26D4
Engine Coolant Pump Supply Voltage Circuit Low
PowertrainRead the code
Generic OBD-II
P26D5
Engine Coolant Pump Supply Voltage Circuit High
PowertrainRead the code
Generic OBD-II
P26D6
Engine Coolant Pump Clutch Control Circuit/Open
PowertrainRead the code
Generic OBD-II
P26D7
Engine Coolant Pump Clutch Performance/Stuck Off
PowertrainRead the code
Generic OBD-II
P26D8
Engine Coolant Pump Clutch Stuck On
PowertrainRead the code
Generic OBD-II
P26D9
Engine Coolant Pump Clutch Control Circuit Low
PowertrainRead the code
Generic OBD-II
P26DA
Engine Coolant Pump Clutch Control Circuit High
PowertrainRead the code
Generic OBD-II
P26DB
Engine Sound Control A Circuit/Open
PowertrainRead the code
Generic OBD-II
P26DC
Engine Sound Control A Circuit Low
PowertrainRead the code
Generic OBD-II
P26DD
Engine Sound Control A Circuit High
PowertrainRead the code
Generic OBD-II
P26DE
Engine Sound Control A Circuit Performance
PowertrainRead the code
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.