power steering goes out when speedometer goes out. 1996 Q45t

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chuy38
Posts: 36
Joined: Mon Feb 19, 2007 5:10 pm
Car: 1996 Q45

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when driving I lose power steering and my speedometer. Then after awhile it comes back and power steering comes back sometimes stays off for awhile. Can anyone help me?


maxnix
Posts: 22627
Joined: Mon Jul 22, 2002 8:11 pm
Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45

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Speed sensor?

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Rex
Posts: 16845
Joined: Sat Apr 05, 2003 6:50 pm
Car: None
Location: South of ATL
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maxnix wrote:Speed sensor?
Pretty sure rsiwicki had a simliar issue, after swapping in his 4.08 and trying to use a "yellow box".

Original poster try searching for thoese key words, including archived content.

chuy38
Posts: 36
Joined: Mon Feb 19, 2007 5:10 pm
Car: 1996 Q45

Post

do you know where the sensor is at?

maxnix
Posts: 22627
Joined: Mon Jul 22, 2002 8:11 pm
Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45

Post

Check the FSM. Think there is a relay associated with PS pump also.

Q45tech
Moderator
Posts: 14296
Joined: Tue Apr 30, 2002 3:19 am
Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl

Post

relay?......................solenoid

The speed sensor sends a signal to an IC [mounted in speedometer housing] which sends speed signals [0 to 5 volts] to TCU, PS pressure controller, the ecu, and the actual speedometer [voltmeter].

Other than bad wiring, the most common failure is the speedometer assembly itself [the part that creates the 0-5 volts].

maxnix
Posts: 22627
Joined: Mon Jul 22, 2002 8:11 pm
Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45

Post

There you go!


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