The "Service Engine Soon" light was on.
The last time I took the car to the dealer for a "check engine" light, they said it just needed to be reset (i.e. it goes on every X miles to get you in to the dealer), so I'm skeptical.
I took it to a local service station (not a dealer). They said the computer reported this code, with the message: "Battery Temerature Sensor Voltage Too low or too high."
What does this mean? Should I be concerned about it or just keep driving.
The car seems to work fine.
11 No Crank reference signal at PCM.
12 Battery input to PCM disconnected during last 50 key starts.
13 MAP sensor pneumatic circuit.
14 MAP sensor electrical circuit.
15 Vehicle speed/distance sensor.
16 Open or shorted condition detected in knock sensor circuit.
17 Engine running too cool.
21 Oxygen sensor circuit.
22 Coolant temperature sensor circuit.
23 Intake air temperature sensor voltage.
24 Throttle position sensor.
25 IAC motor driven circuit.
27 Fault in injector driver interface circuit.
31 Purge solenoid circuit.
32 Fault in EGR diagnostics.
33 A/C cutout relay circuit.
34 Speed control solenoid circuits.
35 Fan control relay circuit.
37 Torque Converter Clutch.
41 Charging system excess or no field current.
42 ASD relay circuit.
43 Fault in ignition coil control circuit.
44 Battery Temperature Voltage.
45 Transmission fault present.
46 Charging System voltage too low.
47 Charging System voltage too high.
51 Oxygen feedback system stuck at lean position.
52 Oxygen feedback system stuck at rich position.
53 Internal logic module problems.
54 No cam position signal.
55 Completion of fault code display.
62 PCM failure.
63 PCM failure.
65 Power steering switch failure.
66 No CCD bus messages.
71 5 volts output low.
72 Catalytic converter failure.
77 Speed control relay.
To call up codes, cycle ignition switch on, off, on, off and on within 5 seconds. Stored codes will be indicated by flashes of the power loss/check engine lamp. The codes will be indicated as two digit numbers, with a four second pause between codes. An example of a code is as follows:
Power Loss/Check Engine Lamp illuminated for approximately 2 to 3 seconds as a bulb check, then turns off.
Lamp flashes 2 times, pauses, then flashes 6 times.
Lamp pauses for approximately 4 seconds.
Lamp flashes 3 times, pauses, then flashes 1 time.
This would indicate that code 26 and 31 are stored. The lamp will continue to flash until all stored codes have been displayed.
Once the lamp starts flashing the stored fault codes, it cannot be stopped. If a code is missed, the entire procedure must be repeated. The lamp will not indicate if oxygen feedback system is switching lean-rich or if idle motor system is operational. The lamp also cannot be used to perform actuation test mode, sensor test mode or engine running test mode.
After all fault codes have been displayed, then power loss/check engine lamp can be used to verify switch function. The lamp will turn on and off as the switch is turned on and off.
P0153 O2 Sensor Circuit Slow Response (Bank 2 Sensor 1) P0153 (M) 2/1 O2 Sensor Slow Response Oxygen sensor response slower than minimum required switching frequency
P1478 Battery Temp Sensor Volts Out of Limit (Chrysler, Jeep)
you night want to put a load teater on the battery to test it and check the altnator
i would go to a good shop and have them print out the codes for you. the code they gave you is wrong its p1478
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