Hello everyone, my Citroen C5 does not start or has difficulty starting when started in the mornings in extremely cold weather. When this problem occurs, the glow plug light comes on and goes out when I turn the ignition. The engine starts easily during the day, the glow plug light does not come on. I changed the glow plugs but the problem persists. When I connect it to the computer, it gives the following error codes.
P1403 -Additional heater circuit 1: short circuit to positive -circuit error
P1404 -Additional heater circuit 2: short circuit to positive or open circuit -circuit error
2007 Citroen C5 II P1403 and P1404 Fault Code
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sydo
- Posts: 19
- Joined: 26 Apr 2024, 08:42
Re: 2007 Citroen C5 II P1403 and P1404 Fault Code
Does anyone have any information regarding this issue?
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Huskyxantia
- (Donor 2025)
- Posts: 2597
- Joined: 30 Jul 2018, 22:11
- x 548
Re: 2007 Citroen C5 II P1403 and P1404 Fault Code
Check the wires leading to 1 & 2 glow plug for any break , check the relay aswell (water ingress)
Husky. 
Thinking outside of the box is better than sitting in a dark one.
Thinking outside of the box is better than sitting in a dark one.-
Huskyxantia
- (Donor 2025)
- Posts: 2597
- Joined: 30 Jul 2018, 22:11
- x 548
Re: 2007 Citroen C5 II P1403 and P1404 Fault Code
You need HellRazor5543 on here he's had a c5 & knows a few things about these cars.
Husky. Thinking outside of the box is better than sitting in a dark one.
Thinking outside of the box is better than sitting in a dark one.