ABS Warning Light - 2002 Rodeo

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ABS Warning Light - 2002 Rodeo

Postby jessidog » Fri May 18, 2018 8:30 am

I have a 2002 Rodeo with about 146K miles. It has the V-6 engine and 5-speed manual transmission. About 6 months ago, the ABS warning light came on briefly. The next time I started the car, the warning light was off. Then it did not come on ago for quite a long time. More recently, it is coming on more frequently, but very intermittently. Last night, my wife said that the warning light was on during her entire trip home from the restaurant. This morning, I turned the ignition to on, but did not start the engine. The ABS light came on (along with all of the other warning lights) and then went out after about 10 seconds.

The brakes feel solid and the fluid level in the master cylinder is correct. I cannot find any sign of a fluid leak. I found a post online that several owners of 2002 Honda Passport (which I understand is the same vehicle) had a similar issue that was repaired by replacing the rear wiring harness. I searched this forum and found one post, but it was a problem that did not involve the ABS light.

Any assistance would be appreciate.

Thanks,
David
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Re: ABS Warning Light - 2002 Rodeo

Postby Buster28 » Fri May 18, 2018 10:22 am

There is an ABS self test at startup, the ABS Warning Lamp will illuminate during the test.
When the ABS Warning Lamp is continuously illuminated the anti-lock brake system is inoperative.

If any one of these Diagnostic Trouble Codes (DTC)’s is set the ABS Warning Lamp is illuminated
The DTC number is flash code, the C0 number is the Scan Tool DTC number
CPU Error (DTC 14) / C0271, C0272, C0273, C0284
Low or High Ignition Voltage (DTC 15) / C0277, 0278
Excessive Dump Time (DTC 17) / C0269
Excessive Isolation Time (DTC 18) / C0274
G-Sensor Output Failure (DTC 21) / C0276
Brake Switch Failure (DTC 22) / C0281
2WD Controller in 4WD Vehicle Controller (DTC 13) / C0285
4WD State Input Signal Failure (DTC 24) / C0282
Pump Motor Failure (DTC 32) / C0267, C0268
EHCU Valve Relay Failure (DTC 35) / C0265, C0266
FL Isolation Solenoid Coil Failure (DTC 41) / C0245, C0247
FL Dump Solenoid Coil Failure (DTC 42) / C0246, C0248
FR Isolation Solenoid Coil Failure (DTC 43) / C0241, C0243
FR Dump Solenoid Coil Failure (DTC 44) / C0242, C0244
Rear Isolation Solenoid Coil Failure (DTC 45) / C0251,C0253
Rear Dump Solenoid Coil Failure (DTC 46) / C0252, C0254
FL Speed Sensor Open or Shorted (DTC 51) / C0225
FR Speed Sensor Open or Shorted (DTC 52) / C0221
Rear Speed Sensor Open or Shorted (DTC 53) / C0235
FL Speed Sensor Missing (DTC 61) / C0226, C0227
FR Speed Sensor Missing (DTC 62) / C0222, C0223
Rear Speed Sensor Missing (DTC 63) / C0236, C0237
Simultaneous Drop-out of Front Speed Sensor Signal (DTC 64) / C0229
Wheel Speed Input Abnormality (DTC 65) / C0238

The ABS Warning Lamp will automatically turn Off if the fault that caused the DTC to set is cleared.
To troubleshoot the ABS run the flash code diagnostic or use a scan tool that can read Rodeo ABS codes.
A common Rodeo code is DTC 53/63 caused by an intermittent open circuit in the rear ABS sensor wiring.
2002 Rodeo Sport 4X4 3.2L V6
2020 Jeep Wrangler 2dr 4x4 3.6L V6
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Re: ABS Warning Light - 2002 Rodeo

Postby Rinaldo » Sat Apr 03, 2021 5:56 pm

Hi!

I am finally trying to resolve the ABS light on problem on my Rodeo 1999.

My mechanic scanned my truck and the code was c0276 G-sensor/rough road/gravity sensor.

I was reading several post about it but none of them says... I resolved it....

Related to this point, have anyone experience resolving it?

All the best!

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Re: ABS Warning Light - 2002 Rodeo

Postby Buster28 » Sun Apr 04, 2021 3:58 am

The G-Switch is mounted to the Anti-Lock Brake System (ABS) Electronic Brake Control Module (EBCM) circuit board that Isuzu calls the Modulator in some catalogs and Coil Integrated Module (CIM) in others. The Modulator/CIM is mounted to the ABS hydraulic unit located in the engine compartment by the battery.

The Modulator is easily removed from the hydraulic unit after disconnecting the 14 Pin connector and removing a few torx screws. The G-Switch is not a replaceable part, you replace the Modulator/CIM electronic assembly . The part number for a 1999-03 2WD ABS Modulator/CIM is 8973577010, The 4WD part number is 8973577000, both are around $220 list USD
2002 Rodeo Sport 4X4 3.2L V6
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Re: ABS Warning Light - 2002 Rodeo

Postby Rinaldo » Wed Apr 07, 2021 7:30 am

Thanks Booster28!

With your info will look at it with my parts supplier.

At first sight he doesn't know what I am talking about.... jjejejeje

Thanks again, will info you when I resolve the issue.

All the best!

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Re: ABS Warning Light - 2002 Rodeo

Postby Rinaldo » Sun Apr 18, 2021 5:31 pm

Hi!

I was looking on ebay but unfortunately can't find the listed parts.

Did you see the part there or in another place/website.

Thanks!

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Re: ABS Warning Light - 2002 Rodeo

Postby Buster28 » Mon Apr 19, 2021 8:35 pm

Rinaldo wrote:Hi!

I was looking on ebay but unfortunately can't find the listed parts.

Did you see the part there or in another place/website.

Thanks!

Rinaldo

2WD CIM/Modulator
https://www.isuzupartscenter.com/oem-pa ... 8973577010
2002 Rodeo Sport 4X4 3.2L V6
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Re: ABS Warning Light - 2002 Rodeo

Postby Rinaldo » Mon Apr 19, 2021 8:37 pm

Thanks!
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