Fault code 1352
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Fault code 1352
Hi
Can someone explain why the code P1352 Fault Pre Post heating relay is always present and is there a cure, Read a few posts and appears to be a common fault but it can't have rolled off the production line with it.
Not sure on the UK MOT rules but here in France they read OBD Codes as part of the test and it goes down as a minor fault,
I would rely like to clear it
Steve
Can someone explain why the code P1352 Fault Pre Post heating relay is always present and is there a cure, Read a few posts and appears to be a common fault but it can't have rolled off the production line with it.
Not sure on the UK MOT rules but here in France they read OBD Codes as part of the test and it goes down as a minor fault,
I would rely like to clear it
Steve
Thanx to Marc and all the admins & knowledgeable people that make this the best forum on the interweb.
- moizeau
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Re: Fault code 1352
Both mine have 1351, glow plugs / relay etc. The 407 didn't have it originally but it's turned up recently, the Jumpy has had it ever since I owned it. I was thinking of checking the glow plugs but they can fall apart on removal apparently. They are rarely used anyway so I've left mine as is. As you say, it's noted as a 'sans contre visite' so I'm not planning on touching mine.
Pete
Notice the BX is still top the list but sadly gone
Notice the BX is still top the list but sadly gone
Re: Fault code 1352
Yes you most likely have a glow plug or 2 gone down, as the engines are not reliant on glow plugs for starting unless its way below 0 degrees there are no noticeable symptoms of the fault hence the reason why the code is in most of these cars.
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Re: Fault code 1352
This specific fault P1352 relates directly to the Pre / Post Heating Relay Box. Pre-heating relay circuit: Coherence - Relay not supplied and plugs supplied. The information from the preheating control unit indicates that the relay is closed even though the ECU commands the opening of the relay for 5 seconds.
This is not to be confused with other pre-post heating fault codes.
This fault, whilst active can cause:
Pre-heater plug, Electrical harness or Pre/post heating relay.
This is not to be confused with other pre-post heating fault codes.
This fault, whilst active can cause:
- Deactivation of the speed limiter
- Deactivation speed limiter until the next time the ignition is switched on
- Deactivation of the cruise control
- Deactivation cruise control until the next time the ignition is switched on
- The ECU limits the fuel flow
- Lack of power
- Noise
- Jerking/stalling
- Starting problem
Pre-heater plug, Electrical harness or Pre/post heating relay.
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Marc
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Re: Fault code 1352
Thanks for that info, There is no symptoms, cruise and speed limiter all works as it should, Already changed the relay.
Steve
Steve
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Re: Fault code 1352
The downgrade mode will only kick in when the fault is actually active Steve, so may reset itself when the ignition is turned off and on again.
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Marc
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Re: Fault code 1352
Cheers Marc, looks like a session in my workshop, Would love to get to the bottom of it.
Thanx to Marc and all the admins & knowledgeable people that make this the best forum on the interweb.
- moizeau
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407 HDI 136 auto
C4 2l petrol coupé
2010 Dispatch III HDI 90
AND a 1980 Z1000ST
AND a 1983 GPz1100 inj
AND a 1995 Zephyr 1100
AND a 1980 Z650 (my moped) - x 317
Re: Fault code 1352
If the code may only cause downgrade mode when active that'll be on start up or an assisted regen maybe? If you car has a FAP and it regens normally I'd ignore it. Plus if you fix it you'll be in the minority......
Pete
Notice the BX is still top the list but sadly gone
Notice the BX is still top the list but sadly gone
Re: Fault code 1352
I would agree with that. I don't know which engine you have but if its a 1.6 HDi especially I'd leave the glow plugs well alone or you could risk opening a can of worms.
If yo want to investigate further disconnect the wires from the glow plugs & do a resistance check on each of them, I reckon you'll find one or two open circuit.
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Re: Fault code 1352
Can't ignore it because I know it's there !
I will be checking plugs first and then see how it goes. Probably have too much time on my hands !!
I will be checking plugs first and then see how it goes. Probably have too much time on my hands !!
Thanx to Marc and all the admins & knowledgeable people that make this the best forum on the interweb.
- GiveMeABreak
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C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
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GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow - x 5742
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- Donor 2024
- Posts: 467
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- My Cars: C5 Aircross 2021 VR7**************[VIN obfuscated, can be read by forum staff]**************[VIN obfuscated, can be read by forum staff]
Kawasaki ZR1100 1994
C4 Hatchback
Yamaha XVS650A 2001 - x 364
Re: Fault code 1352
To continue an old thread, curiosity got the better of me and decided to check the glow plugs. Tested them in situ and found 2 not working, After a couple of hours of very fiddly work, aided by a mirror lots of coffee, all 4 are out and waiting for the new ones to arrive.
I would love 10 mins chat with the guy who decided to put a service item in such a C**** of a location.
I would love 10 mins chat with the guy who decided to put a service item in such a C**** of a location.
Thanx to Marc and all the admins & knowledgeable people that make this the best forum on the interweb.
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- Donor 2024
- Posts: 467
- Joined: 25 Oct 2019, 07:20
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- My Cars: C5 Aircross 2021 VR7**************[VIN obfuscated, can be read by forum staff]**************[VIN obfuscated, can be read by forum staff]
Kawasaki ZR1100 1994
C4 Hatchback
Yamaha XVS650A 2001 - x 364
Re: Fault code 1352
Well, the conclusion is that I am pleased it is now done, 4 new Bosch Glow Plugs fitted, all back together, Fault code now cleared,
Thanx to Marc and all the admins & knowledgeable people that make this the best forum on the interweb.