Code p1601 hiace toyota - 2005 Dodge Stratus Sedan

Question edited for clarity. All questions need full 'year make model'. Don't just leave us with just an engine type!
Question moved to model category.

https://www.google.com/search?q=1998+Toyota+Hiace+Van.+Distributor+wiring

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Question edited for clarity and toss in some CAPS.
Question moved to model category.

Passenger Compartment Relay Box. Relay 6

Toyota HiAce (H200; 2005-2013) fuses and relays

Fuse Box Diagrams https://fuse-box.info > toyota > toyota-hiace-h200-200...

The fuse box is located under the instrument panel, under the cover. The location of the fuses in the passenger compartment: Toyota HiAce (2005-2013 ...

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There are videos here that should help

https://www.google.com/search?q=2000+Toyota+Hiace+van+set+clock

More here

https://www.google.com/search?q=toyota+37204+radio%2C+set+time

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p1601: compression code

p0350: ignition coil primary/secondary circuit

did you change your spark plug (do you change them regularly)
coil pack is on its way?

is the car misfiring when started?
if yes then change coil.

double posted (backup one)
still no year. no year, no joy, not ever.
and ask a real question.
http://www.englishclub.com/vocabulary/wh-question-words.htm

You can find all the wiring diagrams for Toyota Hiace in the workshop repair manual! Download it very easy from - Service Manuals.

DESCRIPTION

DTC No.DTC Detection ConditionTrouble AreaP1601When any condition below is met (1 trip detection logic):

1. Fuel injector compensation code is not registered.
2. Wrong injector compensation code is registered.
3. Fuel injector pilot quantity learning value is not registered.

1. Fuel injector compensation code
2. Fuel injector pilot quantity learning value
3. ECM

This is a copy of the Toyota manual for hi lux. Check for faulty injector / wiring

get older scanner to read code,tune up,fuel filter,

CHEVROLET DTC P1601 - Serial Comm. Problem With Device 1

The Powertrain OBD System Check prompts the technician to complete some basic checks and store the freeze frame and failure records data on the scan tool if applicable. This creates an electronic copy of the data taken when the fault occurred. The information is then stored on the scan tool for later reference.

The UART serial data circuit must be OK so the IPC can send the password XXXXX to the PCM. A DTC P1601 being set would indicate that the UART serial data circuit cannot be used to send information and causing the P1629 also.

An IPC theft deterrent DTC being set would indicate that the Passlock System is faulty and not sending a password XXXXX the PCM. Additional information can be found in Accessories and Optional Equipment / Antitheft and Alarm Systems. See Accessories and Optional Equipment\Antitheft and Alarm Systems

After any Passlock System parts have been replaced, the PCM must relearn the password XXXXX these components.

Replacement PCM's must be reprogrammed. Refer to the latest Techline information for programming procedures.

If no faults have been found at this point and no additional DTC's were set, refer to Diagnostic Aids for additional checks and information.

Hope helps (remember to rate this answer).

check in side the drivers door for the code on the plate