This week we uploaded 290 new TSBs and updates on 151 existing TSBs.
Here are some examples:
TSB No. 9521
Opel/Vauxhall Corsa D 2006-2014.
ABS/ESP indicator on with different electrical malfunctions, such as lack of power steering and starting problems. One or more of the following fault codes stored:
C0000 – Vehicle Speed Sensor Circuit Malfunction
C044A – No Engine RPM Signal
U0073 – ECU Communication Bus A Off
U0121 – Lost Communication with Electronic Brake Control Module
U0140 – Lost Communication With Body Control Module
U2100 – CAN Databus Malfunction
U2105 – Communication with Engine Control Unit Faulty
U2107 – Communication with BCM is Faulty
U2108 – Communication with ABS/ESP Failed
U2111 – CAN Bus No Communication With EHPS
As can be seen in a wiring diagram to this model, the CAN bus to both ABS and power steering are connected in series between BCM and Engine control unit. This means that in case of CAN bus fault, it cannot be ruled out which control unit causes the fault by disconnecting control units while measuring the signal. You will have to bypass the 2 control units that are connected in series on the CAN bus. The fault is often caused by a faulty ABS control unit (A37).
TSB No. 9548
VAG EA288 Diesel from 2013->
MIL on after repair after timing belt failure, engine operation is possibly not affected but fault code stored:
P001600 – Crankshaft Position-Camshaft Position Correlation Bank 1 Sensor A
VAG models with the diesel engine EA288, which is used in all passenger cars since 2013 (Golf 7), have had several different problems with the timing belt over time. We have seen several workshops that, in an attempt to save money for the customer, choose to try their luck after a timing belt failure by not replacing the camshafts. Or they purchase and fit a used camshaft housing including camshafts. Then challenges may occur if, for example, the camshaft has twisted, which can be seen in the picture below.
TSB No. 9606
Honda Civic 2017-2023 1.0 VTEC (P10A2/P10A4).
MIL turns on, lack of engine power, difficult to start engine, fault codes stored:
P0011 – Variable Valve Timing Control (VTC) A System Malfunction
P0014 – Variable Valve Timing Control (VTC) B System Malfunction
P055F – Engine Oil Pressure Out of Range
P2263 – Turbocharger Wastegate Control System Performance Problem
P2646 – Oil Pressure Switch Circuit Low Voltage
This engine can have problems with oil pressure and, as a result, problems with the V-TEC. This often happens because a strainer is clogged by particles from the timing belt (wet belt). However, this is not the same issue as in PSA Pure Tech or Ford 1.0 EcoBoost, where the timing belt dissolves.
In this Honda engine, this problem is instead caused by the timing belt that can rub against the crankshaft pulley. This wears off material from the timing belt which can clog the oil strainer.
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