Jeep Wrangler 1999 Electronic Service Manual page 1077

25 - 10 EMISSION CONTROL SYSTEMS
DESCRIPTION AND OPERATION (Continued)
Generic
Scan Tool
P-Code
P0756 AW4 Shift Sol B (2-3) Functional
P0783 (M) 3-4 Shift Sol, No RPM Drop at
P0801 Reverse Gear Lockout Circuit Open
P0830 Clutch Depressed Switch Circuit
P0833 Clutch Released Switch Circuit
P1110 Decrease Engine Performance Due
To High Intake Air Temperature
P1180 Decreased Engine Performance Due
To High Injection Pump Fuel Temp
P1195 (M) 1/1 O2 Sensor Slow During Catalyst
P1196 (M) 2/1 O2 Sensor Slow During Catalyst
P1197 1/2 O2 Sensor Slow During Catalyst
P1198 Radiator Temperature Sensor Volts
P1199 Radiator Temperature Sensor Volts
P1281
P1282 Fuel Pump Relay Control Circuit
P1283
P1284 (M) Fuel Injection Pump Battery Voltage
P1285 (M) Fuel Injection Pump Controller
P1286 Accelerator Position Sensor (APPS)
P1287 Fuel Injection Pump Controller
P1288 Intake Manifold Short Runner
P1289 Manifold Tune Valve Solenoid Circuit
P1290 CNG Fuel System Pressure Too
DRB Scan Tool Display
Failure
Lockup
or Short
Monitor
Monitor
Monitor
Too High
Too Low
Engine is Cold Too Long
Idle Select Signal Invalid
Out-Of-Range
Always On
Supply Voltage Too High
Supply Voltage Low
Solenoid Circuit
High
Brief Description of DTC
Shift solenoid B (2-3) functional fault - Aisin transmission
The overdrive solenoid is unable to engage the gear
change from 3rd gear to the overdrive gear.
An open or shorted condition detected in the transmission
reverse gear lock-out solenoid control circuit.
Problem detected in clutch switch circuit.
Problem detected in clutch switch circuit.
Intake manifold air temperature is above the engine
protection limit. Engine power will be derated.
Fuel temperature is above the engine protection limit.
Engine power will be derated.
A slow switching oxygen sensor has been detected in
bank 1/1 during catalyst monitor test. (Also see SCI DTC
$66) (was P0133)
A slow switching oxygen sensor has been detected in
bank 2/1 during catalyst monitor test. (Also see SCI DTC
$7A) (was P0153)
A slow switching oxygen sensor has been detected in
bank 1/2 during catalyst monitor test. (Also see SCI DTC
$68) (was P0139)
Radiator coolant temperature sensor input above the
maximum acceptable voltage.
Radiator coolant temperature sensor input below the
minimum acceptable voltage.
Engine coolant temperature remains below normal
operating temperatures during vehicle travel (Thermostat).
An open or shorted condition detected in the fuel pump
relay control circuit.
ECM or fuel injection pump module internal fault condition
Fuel injection pump module internal fault condition
detected. Engine power will be derated.
Fuel injection pump module relay circuit failure detected.
Engine power will be derated.
High voltage detected at APPS.
ECM or fuel injection pump module internal fault condition
detected. Engine power will be derated.
An open or shorted condition detected in the short runner
tuning valve circuit.
An open or shorted condition detected in the manifold
tuning valve solenoid control circuit.
Compressed natural gas system pressure above normal
operating range.
detected.
TJ